Are you looking for the best durable transmission flexplate bolts to ensure reliable power transfer? We offer high-strength Grade 12.9 bolts with BP-coated finishes and no-washer designs for effortless installation, combining unmatched durability and precision to keep your transmission secure under any load.
Your transmission flexplate bolts are critical to power transfer. Weak or corroded bolts can lead to costly failures. That’s why choosing durable, high-strength options ensures your engine runs smoothly and reliably.
Grade 12.9 bolts deliver unmatched strength. BP-coated finishes resist rust and seizing. No-washer designs simplify installation. These features combine to keep your transmission secure under any load.
Every driver deserves confidence under the hood. Whether upgrading or replacing, the right flexplate bolts make all the difference. Explore our picks to find the perfect blend of durability and precision—then drive worry-free.
List of Top 10 Durable Transmission Flexplate Bolts
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GSTP 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit Compatible with LS1 LS3 LS2 Crankshaft LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LH6 L92 L76 LY2 LY5 LY6 LC9 LH8 LMG L98 L99 |
This product is perfect for car enthusiasts and mechanics upgrading or repairing LS1, LS3, LS2, and other compatible engines. The high-strength Grade 12.9 bolts with BP coating provide corrosion resistance, seize-free threads, and easy installation without washers. |
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Flywheel Flexplate Dust Cover Bolt Set for GM Turbo 350 / TH350 Transmission |
This product is perfect for car owners or mechanics working on Chevy GM Turbo 350/400 or TH350/TH400 transmissions. Easy bolt replacement and durable construction make it ideal for routine fixes or upgrades. |
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ICT Billet USA Made 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LH6 L92 L76 LY2 LY5 LY6 LC9 LH8 LMG L98 L99 551926 |
This product is perfect for vehicle owners and mechanics needing strong, reliable bolts for LS engine swaps or repairs. Grade 12.9 strength, corrosion-resistant coating, and no-washer design make installations easy and long-lasting. |
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RMSPO Flywheel&Flexplate Bolt 2002902 for ARP Automatic Transmission Flexplate Bolts fits for Chevy/Ford sbc 400 327 307 283 267 265 262 |
This product is perfect for car enthusiasts and mechanics working on Chevy/Ford small block engines like 400, 327, 307, 283, 267, 265, and 262. It offers a durable, precise fit for automatic transmissions with easy installation. |
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6pc Transmission Flywheel Flexplate Bolts For GM LS Engines LS1 LS2 LS3 4.8 5.3 6.0, High Strength, Zinc coated |
This product is perfect for car enthusiasts and mechanics who want to secure their GM LS engine’s flywheel with high-strength bolts. It’s ideal for those working on LS1, LS2, LS3, and other compatible engines. |
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ApplianPar 6Pcs Transmission Flywheel Flexplate Boltsfor LS1 LS2 LS3 LS6 LS7 4.8 5.3 6.0 |
This product is perfect for mechanics or DIY enthusiasts working on LS1, LS2, LS3, LS6, LS7, 4.8, 5.3, or 6.0 engines. The 6-pack of transmission flywheel flexplate bolts ensures a reliable fit for repairs or upgrades. |
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Aulpq Flywheel & Flexplate Bolts 2002902, for Chevy & Ford V6/V8 Flywheel and Flexplate -6 Pcs |
This product is perfect for mechanics and DIY car enthusiasts working on classic Chevy or Ford V6/V8 engines (262-400) with automatic transmissions. It offers durable, high-quality bolts for precise fits in older models (1955-1982) with two-piece rear main seal cranks, backed by 24-hour customer support for quick help. |
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A.A Transmission Flywheel Bolt Set Flexplate Kit Replacement for GM – LS Series Engines, Crankshaft |
This product is perfect for DIY mechanics and auto repair pros working on GM LS Series engines with 6-bolt crankshafts. It offers heavy-duty bolts with corrosion protection, precise fit, and no-washer ease for reliable performance. |
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ARP Flexplate Bolt Kit, Pro Series, 7/16-20 in Thread, 0.680 in Long, 12 Point Head, Chromoly, Black Oxide, compatible with GM/Ford V6 / V8, Set of 6 |
This ARP Flexplate Bolt Kit is perfect for car enthusiasts and professional mechanics who need reliable, high-quality parts. It’s ideal for GM/Ford V6 or V8 engines, ensuring a secure and durable fit. |
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ARP 2442901 Pro Series Flexplate Bolt Kit for Gen II/LS Series Small Block Chevrolet |
This bolt kit is perfect for mechanics and car enthusiasts upgrading or repairing Gen II/LS Series Small Block Chevrolet engines. It features M11 x 1.5 threads and 3/4 inch wrenching for strong, reliable performance. |
Detailed Reviews
Discover the top 10 durable transmission flexplate bolts handpicked for strength and reliability. Each bolt is tested for performance and value, ensuring your engine runs smoothly. Find the perfect fit for your needs and drive with confidence.
1. GSTP 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit Compatible with LS1 LS3 LS2 Crankshaft LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LH6 L92 L76 LY2 LY5 LY6 LC9 LH8 LMG L98 L99

GSTP 12.9 LS Transmission Flywheel Bolts Set fits LS engines. It includes flexplate kits for LS1, LS3, LS2, and more. These Grade 12.9 metric flange bolts are built for heavy-duty use.
The BP coating fights rust and corrosion. Flange heads grip tight—no washers needed for a secure fit.
Need help? 24-hour service backs your purchase. Warranty ensures peace of mind.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for car enthusiasts and mechanics upgrading or repairing LS1, LS3, LS2, and other compatible engines. The high-strength Grade 12.9 bolts with BP coating provide corrosion resistance, seize-free threads, and easy installation without washers.
Ready to Purchase?
2. Flywheel Flexplate Dust Cover Bolt Set for GM Turbo 350 / TH350 Transmission

This bolt set fits GM Turbo 350, 400, TH350, and TH400 transmissions. It keeps your flywheel flexplate dust cover secure. Simple, reliable design for smooth performance.
Precise fit ensures proper alignment. Durable materials resist wear for long-term use.
Installs easily during routine maintenance. Replaces old bolts quickly to keep your transmission running strong.
| Pros | Cons |
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Perfect For:
This product is perfect for car owners or mechanics working on Chevy GM Turbo 350/400 or TH350/TH400 transmissions. Easy bolt replacement and durable construction make it ideal for routine fixes or upgrades.
Ready to Purchase?
3. ICT Billet USA Made 12.9 LS Transmission Flywheel Bolts Set Flexplate Kit LS1 LS3 LS2 Crankshaft LM7 LR4 LQ4 LS6 L59 LQ9 LM4 L33 LH6 L92 L76 LY2 LY5 LY6 LC9 LH8 LMG L98 L99 551926

ICT Billet’s 12.9 LS Transmission Flywheel Bolts are built for high strength and durability. Made in the USA, these bolts meet strict Grade 12.9 standards for heavy-duty use.
The BP coating resists corrosion and stops threads from seizing. Flange head design locks in place without washers, simplifying installation.
Custom Made in the USA for precision. BP coated for lasting protection. No washers needed—just strong, secure fastening.
| Pros | Cons |
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Perfect For:
This product is perfect for vehicle owners and mechanics needing strong, reliable bolts for LS engine swaps or repairs. Grade 12.9 strength, corrosion-resistant coating, and no-washer design make installations easy and long-lasting.
Ready to Purchase?
4. RMSPO Flywheel&Flexplate Bolt 2002902 for ARP Automatic Transmission Flexplate Bolts fits for Chevy/Ford sbc 400 327 307 283 267 265 262

ARP 2002902 flexplate bolt kit includes 1 set of 6 bolts. It fits Chevy/Ford SBC engines like 400, 327, 307, 283, and more. Bolts are made for durability and easy installation.
Designed for precise fit on automatic transmissions with two-piece rear seals. Reliable service ensures long-term use and project support.
| Pros | Cons |
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Perfect For:
This product is perfect for car enthusiasts and mechanics working on Chevy/Ford small block engines like 400, 327, 307, 283, 267, 265, and 262. It offers a durable, precise fit for automatic transmissions with easy installation.
Ready to Purchase?
5. 6pc Transmission Flywheel Flexplate Bolts For GM LS Engines LS1 LS2 LS3 4.8 5.3 6.0, High Strength, Zinc coated

Secure your engine’s power with these high-strength flywheel bolts. They are built to last. Your engine will run at its best.
These bolts are a perfect fit for all GM LS engines. They work with both manual and automatic transmissions.
Built from solid metal and heat-treated, these bolts offer extended durability. Get yours today and experience the difference!
| Pros | Cons |
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Perfect For:
This product is perfect for car enthusiasts and mechanics who want to secure their GM LS engine’s flywheel with high-strength bolts. It’s ideal for those working on LS1, LS2, LS3, and other compatible engines.
Ready to Purchase?
6. ApplianPar 6Pcs Transmission Flywheel Flexplate Boltsfor LS1 LS2 LS3 LS6 LS7 4.8 5.3 6.0

Upgrade your LS engine with these premium transmission flywheel flexplate bolts. They are designed for a perfect fit on LS1, LS2, LS3, LS6, and LS7 engines, including 4.8, 5.3, and 6.0 models.
This essential set provides rock-solid reliability for your vehicle’s performance. You’ll receive 6 high-quality bolts to ensure your transmission and flywheel are securely connected.
Get superior strength. Experience unmatched durability. Drive with confidence.
| Pros | Cons |
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Perfect For:
This product is perfect for mechanics or DIY enthusiasts working on LS1, LS2, LS3, LS6, LS7, 4.8, 5.3, or 6.0 engines. The 6-pack of transmission flywheel flexplate bolts ensures a reliable fit for repairs or upgrades.
Ready to Purchase?
7. Aulpq Flywheel & Flexplate Bolts 2002902, for Chevy & Ford V6/V8 Flywheel and Flexplate -6 Pcs

This bolt set is made for Chevy and Ford V6/V8 engines. It includes six high-quality flexplate bolts built for automatic transmissions.
Works with classic engines from 1955–1982, like 262, 307, 327, and 400 models. Fits two-piece rear main seal cranks for wide use in older vehicles.
Forged steel ensures strength. Long-lasting performance for reliable fastening. Need help? 24-hour support by email.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for mechanics and DIY car enthusiasts working on classic Chevy or Ford V6/V8 engines (262-400) with automatic transmissions. It offers durable, high-quality bolts for precise fits in older models (1955-1982) with two-piece rear main seal cranks, backed by 24-hour customer support for quick help.
Ready to Purchase?
8. A.A Transmission Flywheel Bolt Set Flexplate Kit Replacement for GM – LS Series Engines, Crankshaft

Upgrade your GM LS engine with this premium flywheel bolt set. It’s designed for a perfect fit and lasting performance.
These hardened steel bolts offer superior strength. They have a special coating to fight rust. No washers are needed thanks to their smart design.
This kit is a direct replacement for many GM parts. It ensures your engine runs smoothly and reliably. Get yours today for peace of mind!
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for DIY mechanics and auto repair pros working on GM LS Series engines with 6-bolt crankshafts. It offers heavy-duty bolts with corrosion protection, precise fit, and no-washer ease for reliable performance.
Ready to Purchase?
9. ARP Flexplate Bolt Kit, Pro Series, 7/16-20 in Thread, 0.680 in Long, 12 Point Head, Chromoly, Black Oxide, compatible with GM/Ford V6 / V8, Set of 6

The ARP Flexplate Bolt Kit is built for high-performance engines. It includes six strong bolts with a 7/16-20 thread and 0.680-inch length to fit GM/Ford V6 and V8 engines securely.
These black oxide-coated chromoly bolts resist wear and corrosion. The 12-point head design allows easy tightening with standard tools.
Made in the USA. Part number 2002902 ensures quality. Perfect for flywheel or flexplate setups.
| Pros | Cons |
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Perfect For:
This ARP Flexplate Bolt Kit is perfect for car enthusiasts and professional mechanics who need reliable, high-quality parts. It’s ideal for GM/Ford V6 or V8 engines, ensuring a secure and durable fit.
Ready to Purchase?
10. ARP 2442901 Pro Series Flexplate Bolt Kit for Gen II/LS Series Small Block Chevrolet

This ARP 2442901 Pro Series Flexplate Bolt Kit fits Gen II/LS Series Small Block Chevrolet engines. It includes strong bolts made for high-performance use. The M11 x 1.5 thread size and 3/4 inch wrenching make it easy to install.
The kit uses high-quality steel to resist wear and heat. Bolts are built for long-term durability in tough conditions.
These bolts ensure a secure flexplate connection. The 3/4 inch wrenching design simplifies tightening. Trusted by mechanics for reliability and strength.
| Pros | Cons |
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Perfect For:
This bolt kit is perfect for mechanics and car enthusiasts upgrading or repairing Gen II/LS Series Small Block Chevrolet engines. It features M11 x 1.5 threads and 3/4 inch wrenching for strong, reliable performance.
Ready to Purchase?
Buying Guide
Transmission flexplate bolts keep your engine and transmission connected. Choosing the right ones ensures smooth, reliable performance.
Factors to Consider When Buying:
– Strength Grade: Look for Grade 12.9 bolts for maximum strength. They handle heavy loads without failing.
– Coating: BP-coated or zinc-coated bolts resist rust and corrosion. This keeps them lasting longer.
– Design: Flange head bolts grip tight without washers. They simplify installation and save time.
– Compatibility: Check if the bolts fit your engine model. Precise fit ensures proper alignment and performance.
– Material: Forged steel or chromoly bolts offer durability. They withstand wear and heat for long-term use.
– Warranty and Support: Choose brands with warranties and 24-hour support. This adds peace of mind to your purchase.
Engaging Experience:
Upgrading or replacing flexplate bolts is easy with the right choice. Drive worry-free knowing your transmission is secure. Explore our top picks for the perfect blend of durability and precision.