Allison Transmission Flexplate Assembly part 23046428

Description

Allison Transmission Flexplate Assembly – Part #23046428

The Allison flexplate assembly (part #23046428) is a critical drivetrain component used in select Allison 5000 and 6000 Series transmissions, including HT700 and CT700 applications. The flexplate mounts between the engine crankshaft and the torque converter, allowing controlled flex to absorb torsional vibration while maintaining proper alignment and balance.

A properly functioning flexplate is essential for smooth engagement, accurate torque transfer, and protecting both the engine and transmission from excessive stress. Cracked, warped, or fatigued flexplates can cause vibration, noise, starter issues, and premature torque converter or transmission damage.

This is a genuine Allison flexplate assembly manufactured to OEM specifications for balance, durability, and severe-duty performance.

Allison flexplate assembly 23046428 is sold as a standalone component. Buyer pays all freight if shipping is required. Local pickup and free delivery within 100 miles is available. If within 300 miles, please call to confirm delivery options. Image is representation only. Please verify application before ordering.

Common symptoms of a failing flexplate assembly

Rattling or knocking noise at idle or during startup
Vibration through the drivetrain
Starter engagement or grinding issues
Cracked or broken flexplate
Elongated or damaged bolt holes
Repeated torque converter or transmission failures

Flexplate problems are often misdiagnosed as transmission issues. Proper inspection before replacement is strongly recommended.

Pre-replacement checklist

Before replacing your flexplate, confirm:

Correct engine and transmission combination
Torque converter bolt pattern compatibility
Crankshaft flange condition
Starter alignment and engagement
Proper fastener torque specifications

Need help confirming fitment? Reaction Force can verify compatibility before you buy.

Installation notes

Inspect crankshaft flange and torque converter mounting surface
Replace flexplate bolts if stretched or damaged
Torque all fasteners to OEM specifications
Confirm proper torque converter seating
Check starter alignment after installation

Improper installation or alignment can result in immediate failure.

Need help?

Reaction Force provides:

Flexplate application and compatibility guidance
Pre-purchase verification support
Expert assistance for Allison 5000 and 6000 Series drivetrains

Call or text: (503) 862-6322

What is an Allison flexplate used for?

The flexplate connects the engine crankshaft to the torque converter and allows controlled flex to absorb vibration while transferring torque into the transmission.

Which transmissions use Allison flexplate 23046428?

This flexplate is commonly used with Allison 5000 and 6000 Series transmissions, including HT700 and CT700 applications. Always confirm engine and transmission pairing.

What happens if a flexplate goes bad?

A failed flexplate can cause noise, vibration, starter issues, and damage to the torque converter or transmission if not addressed.

Can a bad flexplate feel like a transmission problem?

Yes. Flexplate failures often mimic transmission or torque converter symptoms and are frequently misdiagnosed.

Should flexplate bolts be reused?

No. Bolts should be inspected and replaced if there is any sign of stretching, fatigue, or damage.

Does flexplate replacement require removing the transmission?

Yes. The transmission or torque converter must be removed to properly replace the flexplate.

How do I confirm this is the correct flexplate for my vehicle?

Reaction Force can confirm fitment using your engine model, transmission serial number, and application details before purchase.