ES56-5A | Spicer | TTC | Tremec 5-Speed Transmission | BOM 301734 | Remanufactured

ES56-5A | Spicer / TTC / Tremec 5-Speed Transmission — Remanufactured by DPE (BOM 301734)

Direct-drive, fully synchronized 5-speed built for medium-duty performance. The ES56-5A (also known as TR-S56-5A / TR-S46-5A) is a simple, serviceable single-countershaft manual transmission trusted in vocational and regional delivery fleets. Each unit is professionally remanufactured by Discount Parts Exchange (DPE) for reliable shift quality and long service life.

Summary

Remanufactured ES56-5A 5-speed transmission, direct 1.00 top gear, synchronized forward gears, and dual 6-bolt PTO ports. Built to BOM 301734 specification. Sold on exchange.

Highlights

• Model: ES56-5A (aka TR-S56-5A / TR-S46-5A)
• Speeds: 5 forward / 1 reverse (fully synchronized)
• Top Gear: 1.00 (Direct)
• Design: Single countershaft; top-cover shift
• Bill of Materials (BOM): 301734
• PTO Ports: Right & left 6-bolt | PTO Speed: ~49% engine
• Overall Length: 27.05 in
• Dry Weight: ~325 lb
• Clutch Housing: SAE #2 (bell housing not included)
• Lubricant: SAE 50 heavy-duty engine oil | Capacity: ~12 pints
• Case Casting No.: C49-15-7
• Torque Capacity (reference): up to 560 lb-ft (TR-S56-5A) / 460 lb-ft (TR-S46-5A)
• Applications: Medium-duty Class 6–7, vocational & regional delivery

Gear Ratios

What’s Included

• Remanufactured ES56-5A 5-speed transmission (BOM 301734)
• Set up for clean shift quality; painted and tagged for install
• 12-month, unlimited-mileage parts-only warranty
• Tech support from DPE

Core Exchange Policy

• Required: Like-for-like, complete, rebuildable core
• Deductions may apply for cracked housings, missing/burnt internals, low-lube or water damage, non-matching units
• Preparation: Drain fluids and palletize for pickup

Shipping Policy

• Ships via LTL motor freight to verified commercial addresses
• Forklift or dock required; liftgate service available on request
• No residential delivery

Recommended Companion Part

Need a countershaft? See our 56-30-3 Dana Spicer TTC Countershaft (New Genuine NOS).

Image Disclaimer

Photos are representative. Final appearance may vary by casting revision and configuration.

Call to Order

Call for pricing & availability: 419-522-3320  |  Location: Mansfield, Ohio

Heavy-Duty Solutions — Built to Perform. Trusted to Last.