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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
$11.43
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$11.43
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$11.43
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$11.43
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve 16202
$19.73
$11.43
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
Use: Timing Cover Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve 16205
$11.93
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
Use: Timing Cover .790" sleeve length Use w/installation tool
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16311
$52.82
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$53.39
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$53.39
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$53.39
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$53.39
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Timing Cover Repair Sleeve Tool 16312
$53.39
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
Use: Timing Cover
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 501SD
$49.58
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Head bolts not incl. Head bolt replacement recommended PermaTorque Severe Duty
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 502SD
$92.05
$53.64
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
PermaTorque Severe Duty
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 505SD
$47.25
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
Head bolts not incl. Head bolt replacement recommended PermaTorque Severe Duty
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 5198
$1.61
$1.70
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Vehicle Fitment Notes:
2 5/8" ID
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 5198
$1.61
$1.70
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
Vehicle Fitment Notes:
2 5/8" ID
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 5292
$1.68
$1.79
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
3 1/2" ID x 3 9/16" OD
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.55
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.55
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
gmc c25 1978 Air Cleaner Mounting Gasket 60038
$4.33
$2.55
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
5 1/32" ID
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
1 Year Warranty
gmc c25 1978 Engine Oil Drain Plug Gasket 70822
$0.91
$0.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
1 Year Warranty
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.24
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
Distributor to oil pump shaft retainer
1 Year Warranty
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.24
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Distributor to oil pump shaft retainer
1 Year Warranty
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.24
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
Distributor to oil pump shaft retainer
1 Year Warranty
gmc c25 1978 Engine Oil Pump Intermediate Shaft Guide 72665
$2.24
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
Distributor to oil pump shaft retainer
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 7733PT2
$25.00
$26.55
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
Head bolts not incl. Head bolt replacement recommended PermaTorque
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Spacer Shim 7733SP
$31.22
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (4.00x3.48; 101.6x88.5);
Vehicle Fitment Notes:
HeadSaver
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8006PT
$27.72
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Vehicle Fitment Notes:
w/Separate head & int. manifold
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8006PT
$27.72
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.8L 292ci L6 (3.88x4.13; 98.4x104.8);
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8180PT2
$61.74
$35.99
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
PermaTorque
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Spacer Shim 8180SP1
$40.07
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 7.4L 454ci V8 (4.25x4.00; 108.0x101.6);
Vehicle Fitment Notes:
HeadSaver
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8364PT
$28.43
$30.21
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 6.6L 400ci V8 (4.13x3.76; 104.8x95.5);
Vehicle Fitment Notes:
Head bolts not incl. Head bolt replacement recommended
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8501PT1
$29.12
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 1
Vehicle fitment:
Engine Base: 4.1L 250ci L6 (3.68x3.91; 93.5x99.3);
Vehicle Fitment Notes:
w/Integral head
1 Year Warranty
gmc c25 1978 Engine Cylinder Head Gasket 8510PT
$27.76
$29.49
In Stock
Add to cart
Product details
Brand: Fel-Pro
Condition: New
Quantity Required: 2
Vehicle fitment:
Engine Base: 5.0L 305ci V8 (3.74x3.48; 94.9x88.4);
Vehicle Fitment Notes:
Head bolts not incl. Head bolt replacement recommended PermaTorque
1 Year Warranty