Vertical oval body muffler Fits: Allis Chalmers- D17 gas SN: 42001 & up - Specifications: Black finish 4-3/4" inlet length 1-15/16" inlet inside diameter 16-1/4" shell length 8" outlet length 2" outlet outside diameter 29" overall length Oval body muffler 4-1/2" x 9" oval shell Replacement Numbers: Allis Chalmers- 237397, 246129- All JJAgParts items have been hand selected by our team and are continuously monitored for Quality. Should a craftsmanship or fitment concern be identified, JJAgParts will work with you to stand behind our products. JJAgParts is an American owned and operated family business! Here at JJAgParts, we strive for customer satisfaction. If you are not satisfied with your order, please contact us so we can make it right. Note: OEM Part Numbers are for reference only and should be verified before purchase.