1991 Buick Roadmaster Ignition Parts
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- NGK V-Power Spark Plug
- Gap 0.045" OE Equivalent Design
- V-Power Spark Plug
- Product Attributes:
- Center Electrode Design: Standard
- Center Electrode Insulator Tip Projection:
- 0.16
- 4.0
- Washer Included: No
- Electrical Terminal Type: Non-removable Nut
- Grade Type: Standard Replacement
- Service Number: Ur4
- Ground Electrode Tip Material: Nickel
- Short Style Spark Plug: No
- Skirt: No
- Center Electrode Core Material: Copper
- Part Number: Ur4
- Resistor Type: Yes
- Stock Number: 6630
- Ground Electrode Tip Design: Standard
- Pre-Gap Size:
- .040
- 1.0
- Ground Electrode Core Material: Nickel
- Material Grade: Nickel/copper
- Center Electrode Projection: Mid Projection
- Seat Type: Tapered
- Ground Electrode Quantity: 1
- Insulator Material: Ceramic
- Hex Size: 5/8" (16mm)
- Reach:
- 0.460
- 11.2
- Center Electrode Tip Material: Nickel
- Skirt Length: 0.0
- Manufacturer Heat Range: 4
- Ground Configuration: J-gap
- Resistance: 5000.0
- Insulator Height:
- 2.19
- 55.5
- Thread Diameter:
- 0.551
- 14.0
-
Features:
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- RECOMMENDED USAGE: Best for vehicles with OE nickel alloy plugs, not recommended on vehicles with factory precious metal plugs
- ACTUAL OE or EQUIVALENT DESIGN: OEM quality construction nickel alloy center electrode with V-groove provides consistent performance
- NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK's legendary high grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance. Trivalent metal plating ensures superior anti-corrosion and anti-seizing properties.
-
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:
1052895W, 15, 16, 1765179, 18, 1835800T, 1835906T, 18C2, 18S, 19, 25, 25BP, 25C2, 25DP2, 25S, 26, 2R45TS, 2R46TS...VIEW MORE
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | V | - | 8 Cyl 5.0L | 305 |
- HEI/EST Remount Applications; Tan
- Distributor Cap And Rotor Kit; HEI/EST Remount Applications; Tan;
- Distributor Cap And Rotor Kit
- Product Attributes:
- WARNING CA Proposition 65: No
-
Features:
- Features Protection From Arc Thru And Crossfire
- Features 60K V Rated Alkyd Compound
- Brass Terminals Inserts And Steel Rotor Springs
- High Spark Energy Flow
- See Catalog For Application Information
- ACCEL cap and rotor kits offer superior protection from "arc-thru" and crossfire. Features 60k V-rated alkyd compound, stress-relieved at molding to ensure stability. Brass inserts and steel rotor springs provide for high spark energy flow.
Additional Fitment Information:
| Vehicle |
|---|
| 1991 - Buick Roadmaster |
- 1-Pair
- Emblem: Chevy Bowtie Emblem
- Sold As One Pair
- Product Attributes:
- Emblem: Chevy Bowtie Emblem
- Category: Wire Looms - Black
- Feature/Benefit: Using The Divisional Red Color, The Chevrolet Name And Bowtie Emblem Are Molded Onto The Black Nylon Head Of Each Wire Loom, Mounted On Chrome Stems.
- Using the divisional red color, the CHEVROLET name and Bowtie Emblem are molded onto the black nylon head of each wire loom, mounted on chrome stems. Fits Chevrolet small-block V8, 1959-86 and Chevrolet big-block V8 1965-91. 4-wire looms, 2 per package.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | V | - | 8 Cyl 5.0L | 305 |
- 1-Pair
- Emblem:Chevy Bowtie Emblem
- Sold As One Pair
- Product Attributes:
- Emblem: Chevy Bowtie Emblem
- Category: Wire Looms - Black
- Feature/Benefit: Using The Divisional Red Color, The Chevrolet Name And Bowtie Emblem Are Molded Onto The Black Nylon Head Of Each Wire Loom, Mounted On Chrome Stems.
- Using the divisional red color, the CHEVROLET name and Bowtie Emblem are molded onto the black nylon head of each wire loom, mounted on chrome stems. Fits Chevrolet small-block V8, 1959-86 and Chevrolet big-block V8 1965-91. 4-wire looms, 2 per package.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | 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
This Part Fits the Following OEM/Substitute Numbers:
12582002, 2025, 5330, FGR9DPQ, ITF16
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | V | - | 8 Cyl 5.0L | 305 |
- Autolite AP26 Platinum Spark Plug
- Gap .045 (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:
- 0.822
- 20.88
- 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
- Manufacturer Heat Range: 7
- Pre-Gap Size:
- 0.045
- 1.14
- Resistance: 4000
- Insulator Height:
- 2.47
- 62.74
-
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:
25, 41-905, 4112, 5020, AF52, AF52C, ARF52, ARF62, ASF52, ASF52C, BPR4FS, CR45TS, PP002F, R45TS, RV19PMC, SP425
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | V | - | 8 Cyl 5.0L | 305 |
- 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
This Part Fits the Following OEM/Substitute Numbers:
19158031, 41-905, 88901029, CR45TS, R45TS
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1991 - Buick Roadmaster | V | - | 8 Cyl 5.0L | 305 |
- Street Fire™ Spark Plug Wire Set
- w/Socket Distributor Cap; Socket Style; Wires Below Header/Exh. Manifold
- Street Fire™ Spark Plug Wire Set; w/Socket Distributor Cap; Socket Style; Wires Below Header/Exh. Manifold;
- Street Fire(TM) Spark Plug Wire Set
- Product Attributes:
- WARNING CA Proposition 65: Yes
- Boot Type: Multi-angle
- Engine: Chevy Small Block
- Engine Make/Size: Chevy Small Block
-
Features:
- Helically wound conductor suppresses electro and radio noise
- Kevlar core combination for great strength and durability
- Heavy Duty Terminals For Secure Connection
- 8mm silicone and synthetic jacket resists heat and abrasion
- 500 Ohms/ft. Resistance For Improved Spark Delivery And Power
- Silicone Boots Protect Against High Exhaust Temps
- The street fire spark plug wires feature a low resistance conductor that's wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
Additional Fitment Information:
| Vehicle |
|---|
| 1991 - Buick Roadmaster |
- Street Fire™ Spark Plug Wire Set
- w/Socket Distributor Cap; Socket Style; w/Wires Over Valve Covers
- Street Fire™ Spark Plug Wire Set; w/Socket Distributor Cap; Socket Style; w/Wires Over Valve Covers;
- Street Fire(TM) Spark Plug Wire Set
- Product Attributes:
- Wire 3 Length: 34.000 In.
- Wire 2 Length: 38.000 In.
- Wire 4 Length: 34.000 In.
- WARNING CA Proposition 65: Yes
- Boot Type: Multi-angle
- Engine: Chevy Small Block
- Engine Make/Size: Chevy Small Block
- Wire 6 Length: 28.000 In.
- Wire 7 Length: 27.000 In.
- Coil Wire Length: 12.000 In.
- Wire 1 Length: 38.000 In.
- Wire 5 Length: 27.000 In.
- Wire 8 Length: 25.000 In.
-
Features:
- Helically wound conductor suppresses electro and radio noise
- Kevlar core combination for great strength and durability
- Heavy Duty Terminals For Secure Connection
- 8mm silicone and synthetic jacket resists heat and abrasion
- 500 Ohms/ft. Resistance For Improved Spark Delivery And Power
- Silicone Boots Protect Against High Exhaust Temps
- The street fire spark plug wires feature a low resistance conductor that's wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery.
Additional Fitment Information:
| Vehicle |
|---|
| 1991 - Buick Roadmaster |
- Spark Plug Iridium TT
- Gap 0.040 Iridium TT - Ultimate Endurance and Power, 0.4mm Iridium and 0.7mm Platinum Twin-Tip Technology
- Spark Plug Iridium TT
- Spark Plug - Iridium TT
- Product Attributes:
- Seat Type: Tapered
- Ground Electrode Quantity: 1
- Center Electrode Core Material: Copper
- Hex Size: 16
- Reach: 11.6
- Center Electrode Tip Material: Iridium
- Ground Electrode Tip Design: Platinum Twin-tip
- Manufacturer Heat Range: 16
- Ground Configuration: Twin-tip
- Pre-Gap Size: 1.0
- Resistance: 5000.0
- Ground Electrode Core Material: Nickel
- Thread Diameter: 14.0
- Durability of an OE style plug combined with Power & Torque of high performance.
-
Suggested Purchase Quantity: 4
- Most jobs typically require 4 of this item.
This Part Fits the Following OEM/Substitute Numbers:
19208523, 19300383, 19300873, 19301654, 19302742, 19310656, 4289 155, 4715, 5613302, 5613794, 5613842, 5613867, 5613877, 5613935, 5613956, 5613957, 5614229, 5614243...VIEW MORE
Additional Fitment Information:
| Vehicle |
|---|
| 1991 - Buick Roadmaster |
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