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Michigan Motorsports Camshaft Thrust Retainer Plate Kit | Fits Non-VVT LS Engines | 4.8L 5.3L 6.0L 6.2L LS1 LQ4 LQ9 LS2 LS3 | Replaces GM #12589016 | Includes ARP 134-1002 Bolt Kit
✅ In stock
⭐ Lowest price we've tracked
📉 Price recently dropped
C
Grade
Analysis Confidence
55%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 21, 2026 9:41 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
🙂 Fair Price- 🙂Verdict: Fair Price. Small discount vs history. Consider waiting for a better drop.
- 💰The price is modestly below what this product ordinarily sells for.
- 🏷️The listed retail price is trimmed by 5% at checkout.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.
How We Scored This Deal
Price Competitiveness
3.79/28
Recent Value
3.45/22
Market Standing
12.31/20
Deal Strength
20/20
Momentum
10/10
📝 Product Overview
🏪 Sold by
EasySupplies
🚚 Shipping
Free Shipping
Product Details
✓Direct GM 12589016 Replacement – Perfect OEM‑fit upgrade for LS1, LS2, LS3, LQ4, LQ9, and other Gen III/IV non‑VVT LS engines, making installation straightforward and hassle‑free.
✓Heavy‑Duty Flat‑Style Plate – Eliminates the weak factory countersunk torx design, preventing stripped or seized bolts during disassembly and ensuring long‑term serviceability.
✓Includes ARP 134‑1002 Bolt Upgrade – Premium flat‑head ARP bolts provide extreme clamping force, resisting loosening under high‑RPM stress for maximum reliability.
✓Proven in High‑Performance Builds – Trusted by professional LS builders for street, strip, and endurance racing applications thanks to its strength, precision, and consistent performance.
✓Built for Non‑VVT LS Engines – Compatible with 4.8, 5.3, 5.7, 6.0, and 6.2L non‑VVT LS configurations. Not for VVT engines; use the correct countersunk version if your build has VVT.
⚙️ Specifications
Material
Alloy Steel
Thread Size
M8
Exterior Finish
Black Oxide
Manufacturer Grade
Grade III
Head Style
Flat
Screw Head Style
Flat
Color
Black
Fastener Type
bolts
Thread Type
Metric
Thread Style
Right Hand
Item Hardness
Grade 3 or 4