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Choose your Engine for your 1978 GMC P25


Showing 1 - 10 of 18 products
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Autolite
  • Autolite AP145 Platinum Spark Plug
  • Gap .045 (in)
  • Platinum 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: Performance
    • 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: Platinum
    • Ground Electrode Tip Design: Standard
    • Pre-Gap Size:
      • 0.04
      • 1.02
    • Resistance: 4000
    • Insulator Height:
      • 2.274
      • 57.76
  • 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:
10, 121, 4000, 4323, 5029, ARF4, ARF6, ASF4C, HR9APX , HR9APX+ , SP410, YR5VX

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 V - 8 Cyl 5.7L 350

Autolite
  • Autolite AP145 Platinum Spark Plug
  • Gap .035 (in)
  • Platinum 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: Performance
    • 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: Platinum
    • Ground Electrode Tip Design: Standard
    • Pre-Gap Size:
      • 0.04
      • 1.02
    • Resistance: 4000
    • Insulator Height:
      • 2.274
      • 57.76
  • 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

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 L - 6 Cyl 4.8L 292

Autolite
  • Autolite AP145 Platinum Spark Plug
  • Heavy Duty
  • Platinum 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: Performance
    • 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: Platinum
    • Ground Electrode Tip Design: Standard
    • Pre-Gap Size:
      • 0.04
      • 1.02
    • Resistance: 4000
    • Insulator Height:
      • 2.274
      • 57.76
  • 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

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 V - 8 Cyl 5.7L 350

Sealed Power
  • Ductile 2nd Ring Moly Steel Top Ring Premium Ring Groove Widths: 5/64 (in) , 5/64 (in) , 3/16 (in) 0.030 (in) Oversize

This Part Fits the Following OEM/Substitute Numbers:
210-6114030, 251K.030, 2M139-30, 2M139030, 40007.030, 40564030, 40564CP030, E-251K 30, T8325MX30

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 V - 8 Cyl 5.7L 350

NGK
  • NGK V-Power Spark Plug
  • Gap 0.060" OE Equivalent Design
  • V-Power Spark Plug
  • Product Attributes:
    • Center Electrode Design: Standard
    • Center Electrode Insulator Tip Projection:
      • 0.04
      • 1.0
    • Washer Included: No
    • Electrical Terminal Type: Non-removable Nut
    • Grade Type: Standard Replacement
    • Service Number: Yr55
    • Ground Electrode Tip Material: Nickel
    • Short Style Spark Plug: No
    • Skirt: No
    • Center Electrode Core Material: Copper
    • Part Number: Yr55
    • Resistor Type: Yes
    • Stock Number: 7240
    • Ground Electrode Tip Design: Standard
    • Pre-Gap Size:
      • .060
      • 1.5
    • Ground Electrode Core Material: Nickel
    • Material Grade: Nickel/copper
    • Center Electrode Projection: Non-projected
    • 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: 5
    • 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:
108, 1835738T, 35, 3623, 3625, 3627, 683, 684, 685, 687, 7240, 7573, 7584, 7973, ARF2-6, ARF3-6, ARF4-6, ARF41C15...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 V - 8 Cyl 5.7L 350

Dayco
  • Product Attributes:
    • Top Width: .44
    • Outside Circumference:
      • 1233.68
      • 48.57
    • Color: Black
    • Banded Belt: N
    • Standards: Sae J636, Sae J637
    • Effective Length:
      • 1219.20
      • 48
    • Belt Construction: Bottom Cog
    • Minimum Operating Temperature:
      • -35
      • -37.2
    • Material: Synthetic Rubber Compound
    • Maximum Operating Temperature:
      • 175
      • 79.4

This Part Fits the Following OEM/Substitute Numbers:
0650199-00, 10A1220, 11720-52H01, 11A1220, 13-482, 1324963, 13480, 13481, 1363479, 1363480, 14025595, 14029056, 14050449, 14085427, 1488828, 15-480, 15-485, 15480...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Position Engine Body CID
1978 - GMC P25 V - Fan, Alternator and Air Pump 8 Cyl 5.7L Stripped Chassis 350

FelPro
  • Engine Timing Cover Gasket Set
  • with Sleeve 'N' Seal
  • FEL-PRO TCS 45265 Engine Timing Cover Gasket Set for Chevrolet C1500
  • Product Attributes:
    • Grade Type: Premium
  • Features:
    • Meets or exceeds all original equipment specifications
    • Application specific design to ensure a perfect fit
    • Engineered and manufactured specifically for the repair environment
    • Unsurpassed quality you can trust
    • Validated for fit, form, and function
  • Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

This Part Fits the Following OEM/Substitute Numbers:
14000RS, 151026701, 617511, ESM10081, JV926

Additional Fitment Information:
Vehicle Block CC Engine CID
1978 - GMC P25 V - 8 Cyl 5.7L 350

Gates
  • W/A.C.
  • High Capacity V-Belt (Standard)
  • Product Attributes:
    • Top Width: .41
    • Belt Material: Epdm
    • Notched: Yes
    • Outside Circumference:
      • 1240
      • 48.82
    • Construction: Notched
    • Cross Section Designation: Hc41
    • Effective Length:
      • 1219
      • 48
    • Strand Quantity: 1
    • Type: High Capacity V-belt (standard)
    • Cord Material: Polyester
  • Features:
    • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
    • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
    • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
    • Resists oil, heat, ozone, weather and aging for improved belt life
    • Meets or exceeds SAE J636C specifications
  • Gates Automotive XL V-Belt is a durable, long-lasting replacement V-belt designed for the most demanding engine drives. Due to thermal forces in the vehicle engine, this variable notched belt tightens on the drive as it heats up to prevent slippage, improve belt performance and reduce noise.
  • Suggested Purchase Quantity: 3
    • Most jobs typically require 3 of this item.

This Part Fits the Following OEM/Substitute Numbers:
0033566, 0070180, 0105900, 0115100, 026714, 03-02-532-2, 0322519, 0322520, 0400321, 0403481, 065019900, 083713, 10-01999, 10054, 100724, 100754, 100764, 103072...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Position Fuel Type Engine CID
1978 - GMC P25 V - Fan, Alternator and Air Pump GAS 8 Cyl 5.7L 350

Accel
  • HEI In-Cap Design; Primary Resist 0.5 Ohms; Secondary 8.6 k Ohms; Turn Ratio 80:1; Max Voltage 45000V; Red And White Primary Wire;CARB E.O. D-221-6
  • SuperCoil Ignition Coil; HEI In-Cap Design; Primary Resist 0.5 Ohms; Secondary 8.6 k Ohms; Turn Ratio 80:1; Max Voltage 45000V; Red And White Primary Wire;
  • SuperCoil Ignition Coil
  • Product Attributes:
    • WARNING CA Proposition 65: Yes
  • Features:
    • 10-15% More Energy
    • Direct Plug In Replacement Direct OE Fit
    • Advanced Bobbin Technology
    • Highly Specialized Silicone Magnetic Steel Cores
    • Standard Motor Products SMP Dr-32
  • Engineered for higher energy output resulting in quicker starting, improved idle quality, crisper throttle response and more high RPM power. Compatible with both original HEI ignition systems and later model computer controlled HEI systems. No need to remove or re-time distributor. Complete with simplified ground strap, mounting screws, silicone coil gasket and carbon contact brush / spring.

Additional Fitment Information:
Vehicle
1978 - GMC P25

Gates
  • W/O A.C.
  • High Capacity V-Belt (Standard)
  • Product Attributes:
    • Top Width: .41
    • Belt Material: Epdm
    • Notched: Yes
    • Outside Circumference:
      • 1215
      • 47.82
    • Construction: Notched
    • Cross Section Designation: Hc41
    • Effective Length:
      • 1194
      • 47
    • Strand Quantity: 1
    • Type: High Capacity V-belt (standard)
    • Cord Material: Polyester
  • Features:
    • Fiber-loaded rubber stock adds flexibility along the length of the belt and provides greater lateral stability in the pulley
    • Form-ground to ensure precise top width and sidewall dimensional control for proper fit to the pulley
    • Thermally-active tensile cords for maintenance-free performance when properly installed and tensioned
    • Resists oil, heat, ozone, weather and aging for improved belt life
    • Meets or exceeds SAE J636C specifications
  • Gates Automotive XL V-Belt is a durable, long-lasting replacement V-belt designed for the most demanding engine drives. Due to thermal forces in the vehicle engine, this variable notched belt tightens on the drive as it heats up to prevent slippage, improve belt performance and reduce noise.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
0039972692, 0117301, 01183074, 0119792, 021862, 0263044, 0263045, 03-02-559-4, 0401471, 0403471, 0412040118, 0547350, 057931, 10-01965, 10A11843, 10A1195, 10A16423, 10A8767...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Transmission Position Fuel Type Engine CID
1978 - GMC P25 V - Manual Fan, Alternator and Air Pump GAS 8 Cyl 5.7L 350
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