FRO16210-C-IC Eaton Fuller Transmission – Internal Cooler | DPE Remanufactured

FRO16210C-IC | Eaton Fuller 10-Speed Roadranger Transmission — Remanufactured by DPX (Overdrive 0.74, Internal Cooler K-3246)

The Eaton Fuller FRO16210C-IC is a heavy-duty 10-speed manual with 0.74 overdrive, two reverse ranges, and a factory in-case oil-to-water cooler (K-3246). Remanufactured in Mansfield, Ohio by Discount Parts Exchange - DPX. Every unit is torn down, cleaned, inspected, and rebuilt with new bearings, seals, and synchros to ensure long, reliable service.

Also known as FROF16210C-IC / FRO15210C-IC / FRO14210C-IC.

Need the same box without the internal cooler? See the standard FRO16210C.

Highlights

• Model: FRO16210C-IC (internal cooler K-3246)
• Gears: 10 forward / 2 reverse
• Final Overdrive: 0.74
• Torque Rating: 1,600 lb-ft
• Dry Weight: ~602 lb
• Length: 29.9 in
• Internal Cooler: In-case oil-to-water heat exchanger (K-3246)
• Cooler Plumbing: Uses engine coolant supply/return (hose/fitting kits available on request)
• Internal Oil Pump: Yes
• Shift System: Manual main; air range (aux section)
• PTO Openings: Right 6-bolt | Bottom 8-bolt | Thru-shaft options available
• PTO Drive Gears: Right 45-tooth 6/8 pitch | Left 47-tooth 6/8 pitch
• PTO Speed: 0.65× engine (direct) | 0.87× engine (overdrive)
• Oil Capacity: ~23.5 pints (11.1 L) — verify level after cooler bleed
• Clutch Housing: SAE #1 and #2 | Grey iron or aluminum
• Applications: Linehaul / regional Class 8; hot climates or severe-duty requiring added cooling

Gear Ratios — Forward (FRO16210C-IC)

Gear Ratios — Reverse (FRO16210C-IC)

Overall ratio coverage: 17.15:1

What’s Included

• Remanufactured Eaton Fuller FRO16210C-IC transmission (K-3246 cooler installed) rebuilt to factory spec by Discount Parts Exchange - DPX
• 12-month, unlimited-mileage parts-only warranty
• Technical support from DPX during installation and break-in

Optional Services

• Shift tower rebuild (Fuller S-2129)
• PTO rebuilding and setup
• Cooler hose/line kit (vehicle-specific)

Recommended Lubricant

Use Eaton PS-386 approved synthetic SAE 50 manual transmission fluid (e.g., Roadranger SAE 50). Do not use engine oil. Bleed the cooler circuit and re-verify level after install.

Core Exchange Policy

• Sold on exchange: Returned core must be like-for-like, complete, and rebuildable
• Deductions may apply for: Cracked housings, missing/burnt internals, low-lube or water damage, or non-matching cores

Shipping

• Ships via LTL motor freight to verified commercial addresses only
• Forklift or dock required (liftgate available upon request)
• No residential delivery

Image Disclaimer

Photos shown are representative; final appearance may vary by ratio and casting revision.

Order & Support

Call Discount Parts Exchange - DPX for pricing and availability: 419-522-3320

Curious What a Ratio Change Will Do for Your Truck?

Use our free Road Speed Calculator to plug in your tire size, current ratio, and target speed/RPM. See exactly what a 3.55, 3.73, or 4.10 would do before you buy.

Open Road Speed Calculator →

Reference Documentation

For exploded-view diagrams, part numbers, and component identification, download the official Eaton Fuller FRO-15210C Transmission Illustrated Parts List (PDF).

DPX — Ohio’s Premier Heavy-Duty Drivetrain Rebuilder | Built to Perform. Trusted to Last.