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Rear Main Seal Block Cover Gasket Kit for GM LS Engines Compatible with Chevrolet GMC Hummer Pontiac LS LSX LS1 LQ4 LQ9 LS2 LS3 LS7 4.8L 5.3L 5.7L 6.0L BS40640
✅ In stock
F
Grade
🏷️ Price includes Coupon savings
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Apr 29, 2026 10:30 PM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
MACCHILI
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【Replaceable Part Number】Replace BS40640, 100085, JV1657, 38617, RM3165, BS23002, 438830, 257747, S5671, RS29910, 17401, 12550574, 12559769, 8125856710, 8890604360, 89060436.
✓【Compatibility】Compatible with Chevrolet, GMC, Hummer, Buick, Cadillac, Pontiac, Saab, and Isuzu 4.8L, 5.3L, 5.7L, and 6.0L engines.
✓【Features】Made from high-quality materials to ensure durability, excellent sealing performance, and resistance to extreme temperatures and vibrations. Prevents oil leaks and maintains engine efficiency.
✓【Easy to Install】Designed for a precise fit without modifications. Professional installation is recommended for optimal performance.
✓【Tip】Please check the instructions and compatibility table before purchasing. If you are unsure if it is suitable for your car, feel free to contact us.
⚙️ Specifications
Eschindler
Eschindler
Manufacturer Part Number
7.8 ounces
10.6 x 10.6 x 0.78 inches
BS40640
Chrome
BS40640
Manufacturer
Eschindler
Brand
Eschindler
Model
Manufacturer Part Number
Item Weight
7.8 ounces
Package Dimensions
10.6 x 10.6 x 0.78 inches
Item model number
BS40640
Exterior
Chrome