Collection: Marmon-Herrington & Sisu Axles – OEM Off-Highway Parts

143-240-3311 — Sisu FRMP-13/16-S Ring & Pinion Gear Set (4.68 Ratio) | New Genuine Marmon-Herrington

The 143-240-3311 gear set is a new genuine Sisu/Marmon-Herrington ring & pinion for the FRMP-13/16-S axle, factory-matched to a 4.68:1 ratio. Built to OEM specs for heavy-duty traction and long service life in specialty/off-road and vocational applications.

Quick Specs

• Part Number: 143-240-3311
• Axle Model: Sisu FRMP-13/16-S
• Brand: Sisu / Marmon-Herrington
• Ratio: 4.68:1
• Tooth Count (Ring / Pinion): 27 / 21
• Condition: New, Genuine OEM
• Application: Marmon-Herrington/Sisu FRMP-13/16-S axle (verify compatibility)

What’s Included

• (1) Matched ring gear
• (1) Matched pinion gear

Fitment Notes

• Engineered for Sisu FRMP-13/16-S axles requiring a 4.68 ratio.
• Please confirm axle model, ratio, and tooth count prior to ordering.

Cross References

• P/N: 143-240-3311
• Ring Gear: 27-TC
• Pinion Gear: 21-TC

Shipping & Availability

• Ships from Mansfield, Ohio
• Commercial freight or parcel — packaged to protect gear teeth
• International shipping available

Image Disclaimer

Photos show the actual gear set or a representative example. Minor handling marks from storage/inspection may be present.

Warranty

Sold as-is with no manufacturer warranty. All sales final. Please confirm compatibility before purchase.

Need Help?

Have an axle tag or build sheet? We’ll confirm fitment before you buy.
Call 419-522-3320 or message us with your details.

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