1978 PONTIAC BONNEVILLE Cometic Engine Gaskets & Seals

Valve Cover Gasket, 0.188 in. Thickness, Rubber/Steel Core, Oldsmobile, Oldsmobile V8, Each

Part Number: CGT-C15440

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Head Gasket, MLS, 4.160 in. Bore, .040 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5711-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Head Gasket, MLS, 4.160 in. Bore, .027 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5711-027

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Head Gasket, 4.200 in. Bore, .027 in. Compressed Thickness, Pontiac, 455, Each

Part Number: CGT-C5769-027

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Head Gasket, 4.200 in. Bore, .040 in. Compressed Thickness, Pontiac, 455, Each

Part Number: CGT-C5769-040

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Head Gasket, MLS, 4.300 in. Bore, .040 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5712-040

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Head Gasket, MLS (Multi-Layered Steel), 4.200 in. Bore, .036 in. Compressed Thickness, 8.173cc Compressed Volume, No Lock Wire, Pontiac, V8, Each

Part Number: CGT-C5769-036

Not Yet Reviewed

Estimated Ship Date: Today

Head Gasket, MLS, 4.200 in. Bore, .051 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5769-051

Not Yet Reviewed

Estimated Ship Date: Today

Head Gasket, 4.380 in. Bore, .060 in. Compressed Thickness, Pontiac, 428, 455, Each

Part Number: CGT-C5846-060

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Valve Cover Gasket, Aramid Fiber, .094 in. Thickness, Pontiac, V8, 5.3/5.7/6.6/6.9/7.0/7.5L, Each

Part Number: CGT-C5779-094

3.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Head Gasket, MLS, 4.300 in. Bore, .080 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5712-080

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Head Gasket, MLS, 4.200 in. Bore, .080 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5769-080

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

.075" MLS-5 HEAD GASKET

Part Number: CGT-C5811-075

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Head Gaskets, 4.380 in. Bore, .040 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5846-040

Not Yet Reviewed

Estimated Ship Date: Today

Head Gasket, MLS, 4.380 in. Bore, .045 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5846-045

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order

Head Gasket, MLS, 4.200 in. Bore, .060 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5769060

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping

Head Gasket, MLS, 4.270 in. Bore, .051 in. Compressed Thickness, Oldsmobile, Each

Part Number: CGT-C5811-051

Not Yet Reviewed

Estimated Ship Date: Today

Head Gasket, MLS, 4.200 in. Bore, .045 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5769-045

Not Yet Reviewed

Estimated Ship Date: Today

Head Gaskets, 4.410 in. Bore, .040 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5847-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order

Head Gasket, 4.200 in. Bore, .030 in. Compressed Thickness, Pontiac, 455, Each

Part Number: CGT-C5769-030

Not Yet Reviewed

Estimated Ship Date: Today

Head Gasket, MLS, 4.300 in. Bore, .098 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5712-098

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Head Gasket, MLS, 4.160 in. Bore, .030 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5711-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order

Head Gasket, MLS, 4.380 in. Bore, .051 in. Compressed Thickness, Pontiac, Each

Part Number: CGT-C5846-051

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order

Head Gasket, MLS, 4.270 in. Bore, .045 in. Compressed Thickness, Oldsmobile, Each

Part Number: CGT-C5811-045

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

• Drop Ship
• Special Order

Valve Cover Gaskets, Aramid Fiber, .188 in. Thickness, Oldsmobile V8, 5.4/5.7/6.6/7.5L, Each

Part Number: CGT-C5824-188

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today