A38818-1 Gearset | Meritor Rockwell AxleTech H172 R5.38 | Genuine OEM

A38818-1 Gearset | Rockwell Meritor AxleTech H172 | 5.38 Ratio | New Genuine

A38818-1 is a New Genuine OEM ring & pinion gearset for the Rockwell/Meritor/AxleTech H172 axle. Built for heavy-duty truck and vocational applications, this set delivers a 5.38 ratio (43/8 tooth count) with OEM fit and durability.

Specs & Features

• Part Number: A38818-1 (Replaced by A38776-9)
• Application: H172 axle
• Gear Ratio: 5.38
• Tooth Count: 43 ring / 8 pinion
• Spline Size: 1.750" — 34 spline
• Ring Gear: 38818
• Pinion: 38819
• Condition: New Genuine (OEM)
• Brand: Rockwell / Meritor / AxleTech

What’s Included

• 1 × Ring Gear — 38818
• 1 × Pinion — 38819
• Note: Hardware and pinion nut not included

Fitment Notes

• For Meritor/Rockwell H172 axle applications.
• Verify axle model, ratio, and spline spec (1.750"–34) against your axle tag/BOM before ordering.

Image Disclaimer

Product photos may show the actual item or a representative equivalent. Minor surface marks from long-term storage may be present.

Warranty Policy

Sold as a new genuine OEM part; no warranty expressed or implied. Professional installation recommended.

Location

Mansfield, Ohio — 419-522-3320

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