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Michigan Motorsports LS Valley Cover Gasket - Fits 1997-2007 Gen 3 LS Engines - Replacement Gasket for LS1 LS6 LM7 LQ4 LQ9 LR4 - Replaces 12558178
✅ In stock
F
Grade
Analysis Confidence
90%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 6:45 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.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 📉No lower price has surfaced in the past twelve months, making this one of the standout deals in recent memory.
- ➡️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
16/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Michigan Motorsports
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Precision Molded Valley Cover Gasket for Gen 3 LS Engines – Designed to provide a reliable, leak-free seal between the valley cover and engine block on all 1997–2007 Gen III LS platforms.
✓OEM Fit and Function – Direct Replacement for GM 12558178 – Manufactured to meet or exceed OEM specifications, this gasket offers a perfect fit and excellent durability for stock and performance engine builds.
✓Durable Rubber Construction with Molded Bead Sealing – Made from high-quality rubber with an integrated sealing bead, ensuring long-lasting oil resistance, proper sealing, and resistance to heat and vibration.
✓Compatible with Multiple LS Gen 3 Applications – Fits a wide range of LS-based iron and aluminum blocks, including LS1, LS6, LM7, LQ4, LQ9, LR4, and more.
✓Ideal for Engine Rebuilds, Cam Swaps, or General Maintenance – Whether you're doing a valley cover reseal, camshaft upgrade, or replacing a leaking gasket, this is a must-have component for proper LS engine maintenance.
⚙️ Specifications
Brand
Michigan Motorsports
Material
Aluminum
Color
Natural
Manufacturer
Michigan Motorsports
Package Dimensions
19 x 6 x 0.5 inches
Item Weight
3.98 ounces
ASIN
B0BPJPHMNQ
Item model number
AB614
Date First Available
December 8, 2022
Best Sellers Rank
See Top 100 in Automotive
Brand Name
Michigan Motorsports