Collection: Eaton & Dana Differential Parts | NOS OEM Parts
Dana-Spicer & Eaton Differential Gearsets — Ready for Work
Stock up on Dana-Spicer and Eaton ring & pinion gear sets for the axle models fleets run every day: S135, S150, 360CA, DS/RS404, S400, and more. Need lower RPM on the highway or more pull off the line? These gear sets deliver clean patterns and proven durability when set up to spec.
What We Stock
- OEM NOS & Take-Outs: Genuine factory parts and verified take-outs for OE fit and finish.
- Quality Aftermarket: Solid options for cost-effective ratio changes and rebuilds.
- Popular Ratios: From fuel-saver to heavy-haul (availability varies by axle model).
Why Buy From Us
- Real-world Spec Help: We match ratios to engine, transmission, and tire size so the combo works.
- Shop-Checked: Teeth, patterns, and compatibility inspected before it ships.
- Fast Freight: LTL to verified commercial addresses — international shipping available.
Common Uses
Line-haul, vocational, municipal, and utility fleets doing rebuilds, ratio swaps, or drivetrain refreshes that have to hold up under load.
Need Fitment Help?
Have an axle tag, BOM, or casting number? Call 419-522-3320. We’ll confirm the correct gear set before you order.
Heavy-Duty Solutions — Built to Keep Your Drivetrain Moving.
Built to Perform. Trusted to Last.
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Vendor:Eaton / Dana Heavy Axle208523R5 Flange Half | International RA474, RA57, Dana-Spicer W230 | 3.73–4.44 Ratio | Used OEM
208523R5 Differential Flange Half — International RA474 / RA57 | Dana-Spicer W230 | Used OEM 208523R5 is a...Regular price $124.74 USDSale price $124.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle129969 | Dana Spicer Power Divider Cover | DS461 DS462 DS463 | Non-Pump | New Genuine
129969 Dana Spicer Power Divider Cover — DS461 Axles | Non-Pump Style | New Genuine Product Summary Genuine...Regular price $347.74 USDSale price $347.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle123269 Gearset | Dana Eaton RC461, 3.70 Ratio – New Take-Off Genuine
123269 Dana Eaton Gearset — RC461 / RC521 / RC581 | 3.70 Ratio (37–10) | Ring 52995 +...Regular price $1,747.74 USDSale price $1,747.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle122351 | Eaton Dana Gear Set | 15040S R-4.63 | 37/8 Tooth | Used
122351-U Eaton Dana Gearset — 15040S Axle | 4.63 Ratio (37–8) | Used Genuine Product Summary 122351-U is...Regular price $1,247.74 USDSale price $1,247.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle122146 Gearset | Dana Eaton 21065T, 2SPD, 4.63/6.31 Ratio – New (NOS) Genuine
122146 Dana Eaton Gear Set — 4.63 Ratio | 19055T / 21065T / 22065T Axles | New Take-Off...Regular price $1,974.47 USDSale price $1,974.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle122045 Gearset | Dana Spicer Eaton RT461, 4.11/5.61 Ratio – New (NOS) Genuine
122045 Dana Spicer Gear Set — 4.11 Ratio | 23080P / RT461 / RT521 Axles | New Genuine...Regular price $1,974.47 USDSale price $1,974.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle121748 | Eaton Dana-Spicer 19050T Nest Kit w/ 126000 36 Spline A-Gears | New OEM
121748 Dana Spicer Axle Nest Kit — 19050-T / 19050-P | Differential Gear Set | New Genuine OEM...Regular price $247.74 USDSale price $247.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle119352 Gearset | Dana Eaton DS480P, 5.43 Ratio – Used Genuine Eaton
119352 Dana Eaton Gear Set — 5.43 Ratio | DS480P Axle | Used 119352 is a used Dana...Regular price $1,174.47 USDSale price $1,174.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle113595 | Eaton Dana-Spicer Sun Gear for 26321 / 35327 | New Genuine
113595 Dana Spicer Sun Gear — 23221 / 23321 / 26321 / 35327 Axles | New Genuine OEM...Regular price $267.47 USDSale price $267.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle111351 Gearset | Dana Eaton RS480, 3.55 Ratio – New (NOS) Genuine Eaton
111351 Dana Eaton Gear Set — 3.55 Ratio | RS480 / 44RS / 23120-1 Axles | New Take-Off...Regular price $1,574.47 USDSale price $1,574.47 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle110807, 110808 | Dana Spicer Eaton DS402-P Input Retainer | New (NOS) Genuine
110807 110808 Dana Spicer Input Retainer — DS381-P / DS402-P | Casting 110806 | New (NOS) This genuine...Regular price $74.74 USDSale price $74.74 USD Regular priceUnit price per -
Vendor:Eaton / Dana Heavy Axle110150, 0110150 | Eaton Dana Spicer Momentary Switch Assembly | New (NOS) Genuine
110150 Dana Spicer Momentary Switch | 0110150 | Eaton Axle & Transmission | New (NOS) OEM This genuine...Regular price $97.47 USDSale price $97.47 USD Regular priceUnit price per
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Discount Parts Exchange delivers quality, reliability, and value in every drivetrain component. Backed by decades of hands-on experience, our heavy-duty solutions are built to keep your truck running.