Shop By Product Matching "Autolite"
Choose your Engine for your 1981 GMC C2500
Image
Product
Price
- Autolite 25 Copper Spark Plug
- Gap .035 (in); Auto
- Copper Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Regular
- Core Nose Length:
- 0.726
- 18.44
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- 0.044
- 1.12
- Resistance: 4000
- Insulator Height:
- 2.374
- 60.3
-
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
18, 18S, 19157996, 22431, 22531, 2423, 25164640, 32221, 3851859, 3851861, 4339413, 44TS, 5024, 516484800, 5613191, 5613325, 5613673, 5613831...VIEW MORE
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.7L | 350 |
- Autolite 145 Copper Spark Plug
- Gap .045 (in); Auto
- Copper Spark Plug
- Product Attributes:
- Center Electrode Projection: Short Projection
- Center Electrode Insulator Tip Projection:
- 0.044
- 1.12
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Regular
- Core Nose Length:
- 0.557
- 14.15
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- 0.04
- 1.02
- Resistance: 4000
- Insulator Height:
- 2.274
- 57.76
-
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
121, 19157985, 19157988, 22131, 2U2J12405YA, 44T, 5029, 5613842, 5613855, 5613867, 5613875, 566, 711, 7972, 8129827, ARF4, ARF6, ASF4C...VIEW MORE
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 7.4L | 454 |
- Autolite 145 Copper Spark Plug
- Gap .035 (in); Auto
- Copper Spark Plug
- Product Attributes:
- Center Electrode Projection: Short Projection
- Center Electrode Insulator Tip Projection:
- 0.044
- 1.12
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Regular
- Core Nose Length:
- 0.557
- 14.15
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- 0.04
- 1.02
- Resistance: 4000
- Insulator Height:
- 2.274
- 57.76
-
Features:
- The copper core center electrode aids in thermal control and improves resistance to fouling.
- Its specially engineered high nickel alloy center and ground electrode provides extended life.
- The high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Autolite® Copper spark plugs are engineered to deliver quick starts and the power your vehicle or applications needs to meet performance expectations.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | L | - | 6 Cyl 4.8L | 292 |
- Autolite AP25 Platinum Spark Plug
- Gap .035 (in)
- Platinum Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.726
- 18.44
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- 0.044
- 1.12
- Resistance: 4000
- Insulator Height:
- 2.374
- 60.3
-
Features:
- Engineered with a platinum firing tip that prevents gap erosion for longer service life.
- Its high alumina ceramic insulator provides thermal conductivity and superior insulation for increased strength.
- The multi-rib insulator prevents flash-over.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended life.
- Autolite® Platinum spark plugs are engineered with a platinum center electrode firing tip that provides improved performance and increased durability, making it a reliable choice for all older engine applications and designs. Its platinum design delivers quicker firing, smoother starts, for better acceleration, and improved fuel efficiency.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
2, 2423, 3018, 406, 4AF2, 5024, 6113, ARF42, ASF42, ASF42P, CR43TSM, F6TE12405MA, HR9BP+ , HR9BPP30V, HR9BPP30X, HR9BPX+ , PP002E, R43TS...VIEW MORE
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.7L | 350 |
- Autolite APP26 Double Platinum Spark Plug
- Gap .035 (in)
- Double Platinum Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.822
- 20.88
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Standard
- Manufacturer Heat Range: 7
- Pre-Gap Size:
- 0.035
- 0.89
- Resistance: 4000
- Insulator Height:
- 2.47
- 62.74
-
Features:
- Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
- The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
- Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
- The multi-rib insulator prevents flash-over.
- Autolite® Double Platinum spark plugs have a platinum-to-platinum design that decreases gap erosion, reduces misfires, and provides improved durability*, leading to longer service life. It provides superior performance over copper and platinum plugs primarily used in distributorless ignition system (DIS) engines.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
19158031, 41-905, 88901029, CR45TS, R45TS
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | L | - | 6 Cyl 4.1L | 250 |
- Autolite APP26 Double Platinum Spark Plug
- Gap .045 (in)
- Double Platinum Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.822
- 20.88
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Platinum
- Ground Electrode Tip Design: Standard
- Manufacturer Heat Range: 7
- Pre-Gap Size:
- 0.035
- 0.89
- Resistance: 4000
- Insulator Height:
- 2.47
- 62.74
-
Features:
- Engineered with a platinum-to-platinum design that prevents gap erosion, extending the life of the spark plug.
- The yttrium-Enhanced Ground Electrode delivers superior heat transfer that delivers more durability under high temps and pressure for greater life.
- Its high alumina ceramic insulator provides optimum thermal conductivity and dielectric strength.
- The multi-rib insulator prevents flash-over.
- Autolite® Double Platinum spark plugs have a platinum-to-platinum design that decreases gap erosion, reduces misfires, and provides improved durability*, leading to longer service life. It provides superior performance over copper and platinum plugs primarily used in distributorless ignition system (DIS) engines.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.0L | 305 |
- Autolite XP26 Iridium XP Spark Plug
- Gap .045 (in)
- Iridium XP Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Design: Fine Wire
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.822
- 20.88
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Iridium
- Ground Electrode Tip Design: Taper Cut
- Manufacturer Heat Range: 7
- Pre-Gap Size:
- 0.035
- 0.89
- Resistance: 4000
- Insulator Height:
- 2.47
- 62.74
-
Features:
- Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
- Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
- The tapered ground wire improves engine ignitability.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.
- Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.0L | 305 |
- Autolite XP26 Iridium XP Spark Plug
- Gap .035 (in)
- Iridium XP Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Design: Fine Wire
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.822
- 20.88
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Iridium
- Ground Electrode Tip Design: Taper Cut
- Manufacturer Heat Range: 7
- Pre-Gap Size:
- 0.035
- 0.89
- Resistance: 4000
- Insulator Height:
- 2.47
- 62.74
-
Features:
- Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
- Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
- The tapered ground wire improves engine ignitability.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.
- Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
12582002, 2025, 5330, FGR9DPQ, ITF16
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | L | - | 6 Cyl 4.1L | 250 |
- Autolite XP25 Iridium XP Spark Plug
- Gap .035 (in)
- Iridium XP Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Design: Fine Wire
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.726
- 18.44
- Ground Electrode Tip Material: Platinum
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Iridium
- Ground Electrode Tip Design: Taper Cut
- Pre-Gap Size:
- 0.044
- 1.12
- Resistance: 4000
- Insulator Height:
- 2.374
- 60.3
-
Features:
- Engineered with an Iridium-enhanced center electrode and fine-wire design that increases ignitability and provides a more focused ignition for improved engine performance.
- Its proprietary platinum ground electrode provides increased durability* and resistance to wear, extending the life of the plug.
- The tapered ground wire improves engine ignitability.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
- Designed with a nickel-plated shell that is corrosion resistant to provide increased durability for extended periods.
- Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.
- Autolite® Iridium XP spark plugs are engineered with an iridium-enhanced fine-wire and a proprietary, platinum ground electrode, to increase durability*, while its tapered ground wire maximizes engine efficiency, delivering improved engine performance, fuel efficiency, acceleration, and ignitability.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
2018, 4715, 7401, HR9BII33V, ITF16, ITF16TT, UR4IX
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.7L | 350 |
- Autolite AR25 Racing Spark Plug
- Gap .035 (in); Auto
- Racing Spark Plug
- Product Attributes:
- Center Electrode Projection: Mid Projection
- Center Electrode Insulator Tip Projection:
- 0.133
- 3.38
- Seat Type: Tapered
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Ground Electrode Quantity: 1
- Grade Type: Performance
- Core Nose Length:
- 0.726
- 18.44
- Ground Electrode Tip Material: Nickel
- Center Electrode Core Material: Copper
- Hex Type: Hex
- Resistor Type: Yes
- Insulator Material: Ceramic
- Indexed: No
- Hex Size: 5/8
- Reach:
- 0.431
- 10.95
- Center Electrode Tip Material: Nickel
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- 0.044
- 1.12
- Resistance: 4000
- Insulator Height:
- 2.374
- 60.3
-
Features:
- Engineered with a cut-back ground electrode that delivers optimal ignitability of the flame kernel and better heat transfer, leading to quicker starts.
- The yttrium-enhanced alloy enables up to 8% reduction in ground wire temperature for colder heat ranges designed to enable performance modifications and handle intense conditions.
- Designed with an anti-corrosive nickel-plating prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency.
- Its high alumina multi-rib ceramic insulator provides thermal conductivity and superior insulation for increased strength while preventing flash-over.
- Autolite® Racing spark plugs are engineered with a cut-back ground electrode, anti-corrosive nickel plating, and large ground electrode that deliver better heat transfer, ensuring maximum engine performance on the track.
-
Suggested Purchase Quantity: 8
- Most jobs typically require 8 of this item.
- This item must be purchased in quantities of 4
This Part Fits the Following OEM/Substitute Numbers:
18, 276, 6630, C57Y, RV15YC4, UR4
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1981 - GMC C2500 | V | - | 8 Cyl 5.7L | 350 |
Showing 1 - 10 of 17 products
Loading...