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1978 Gmc C25 Engine Parts

Save up to 40% on original replacement 1978 GMC C25 maintenance and repair parts. Over 1,000 high-quality, direct-fit parts for a 1978 GMC C25, offered by well-known brands such as SEALED POWER, CLEVITE, DORMAN. Find Brakes, Engine, Suspension, and many more truck parts with our easy-to-use online catalogue.
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gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$8.54
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Use: Timing Cover; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$8.54
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Use: Timing Cover; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$8.54
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Use: Timing Cover; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$8.54
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Use: Timing Cover; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$8.54
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Use: Timing Cover; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve 16205
$11.69
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Use: Timing Cover; .790" sleeve length; Use w/installation tool;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16311
$51.78
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Use: Timing Cover;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$52.36
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); Use: Timing Cover;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$52.36
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); Use: Timing Cover;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$52.36
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Use: Timing Cover;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$52.36
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Use: Timing Cover;
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$52.36
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Use: Timing Cover;
gmc c25 1978 Engine Cylinder Head Gasket 501SD
$48.60
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Head bolts not incl.; Head bolt replacement recommended; PermaTorque Severe Duty;
gmc c25 1978 Engine Cylinder Head Gasket 502SD
$92.05
$42.81
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); PermaTorque Severe Duty;
gmc c25 1978 Engine Cylinder Head Gasket 505SD
$46.31
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Head bolts not incl.; Head bolt replacement recommended; PermaTorque Severe Duty;
gmc c25 1978 Air Cleaner Mounting Gasket 5198
$1.61
$1.37
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); 2 5/8" ID;
gmc c25 1978 Air Cleaner Mounting Gasket 5198
$1.61
$1.37
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8); 2 5/8" ID;
gmc c25 1978 Air Cleaner Mounting Gasket 5292
$1.68
$1.42
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); 3 1/2" ID x 3 9/16" OD;
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.00
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); 5 1/32" ID;
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.00
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); 5 1/32" ID;
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.00
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); 5 1/32" ID;
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.76
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Distributor to oil pump shaft retainer;
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Distributor to oil pump shaft retainer;
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Distributor to oil pump shaft retainer;
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); Distributor to oil pump shaft retainer;
gmc c25 1978 Engine Cylinder Head Gasket 7733PT2
$25.00
$21.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); Head bolts not incl.; Head bolt replacement recommended; PermaTorque;
gmc c25 1978 Engine Cylinder Head Spacer Shim 7733SP
$30.63
In Stock
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Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5); HeadSaver;
gmc c25 1978 Engine Cylinder Head Gasket 8006PT
$27.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); w/Separate head & int. manifold;
gmc c25 1978 Engine Cylinder Head Gasket 8006PT
$27.18
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
gmc c25 1978 Engine Cylinder Head Gasket 8180PT2
$33.86
$28.72
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); PermaTorque;
gmc c25 1978 Engine Cylinder Head Spacer Shim 8180SP1
$39.28
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6); HeadSaver;
gmc c25 1978 Engine Cylinder Head Gasket 8364PT
$28.43
$22.32
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5); Head bolts not incl.; Head bolt replacement recommended;
gmc c25 1978 Engine Cylinder Head Gasket 8501PT1
$28.54
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 1
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3); w/Integral head;
gmc c25 1978 Engine Cylinder Head Gasket 8510PT
$27.76
$22.90
In Stock
Add to cart
Product details
Brand: Fel-Pro
Quantity Required: 2
Condition: New
1 Year Warranty
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4); Head bolts not incl.; Head bolt replacement recommended; PermaTorque;