Engines & Engine Parts for International Harvester R121
Find parts that fit
We need more information about your vehicle to confirm fit.
International Harvester
R121
SPONSOREDSPONSOREDSPONSOREDSPONSOREDSPONSORED
All
Auction
Buy It Now
351 Results
Engine Cylinder Head Gasket Set Fel-Pro HS 7541 CS (Fits: International Harvester R121)
Brand New: Fel-Pro$93.69Free shippingEngine Piston Ring Set Sealed Power E-135X (Fits: International Harvester R121)
Brand New: Sealed Power$67.97Free shippingEngine Conversion Gasket Set Fel-Pro CS 7799 (Fits: International Harvester R121)
Brand New: Fel-Pro$92.92Free shippingFel-Pro Engine Valve Cover Gasket Set VS5843C (Fits: International Harvester R121)
New (Other): Fel-Pro$13.77Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
Was: $22.95or Best Offer$4.95 shippingGates 31064 Crankcase Breather Cap for WO-64 WE-64A SO64 SO-64 RSO-64 RFE-64 lm (Fits: International Harvester R121)
The #1 Seller of Genuine Gates Parts on eBayBrand New: Gates$9.11Was: $18.2468 soldEngine Crankcase Breather Cap-Oil Breather Cap BUICK CHEVY PONTIAC FORD AMC (Fits: International Harvester R121)
Brand New: Stant(10)10 product ratings - Engine Crankcase Breather Cap-Oil Breather Cap BUICK CHEVY PONTIAC FORD AMC$8.98Trending at $9.99eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.$9.45 shipping38 watchingOil pump for 1950-1970 International 6 cyl 220 240 264 (Fits: International Harvester R121)
Remanufactured$149.00Free shipping5 watchingMechanical Lifter for 1950-1968 International SD220,240,BD220,240,264,BG241 (Fits: International Harvester R121)
New (Other)$14.99Free shippingEngine Piston Ring Set Sealed Power 677X (Fits: International Harvester R121)
Brand New: Sealed Power$132.99Engine Cylinder Liner-Stock Melling CSL223 (Fits: International Harvester R121)
Brand New: Melling$37.00Free shippingEngine Cylinder Head Gasket Set For International Harvester A110 3.9L 1957-1958 (Fits: International Harvester R121)
Brand New: Victor Reinz$184.65Free shippingEngine Cylinder Head Gasket Set Fel-Pro HS 7799 CS-2 (Fits: International Harvester R121)
Brand New: Fel-Pro$84.62Free shippingFel Pro HS7799CS2 1955-1970 International I.H.C. 6 Cyl Engines Head Gasket Set (Fits: International Harvester R121)
Brand New: Fel-Pro$82.98$19.37 shipping7 watchingNational 7581H Oil Seal For IH 85-60 (T/C) NOS (Fits: International Harvester R121)
Brand New: National Oil Seals$28.99Free shippingFor 1953-1955 International R121 Crankshaft Repair Sleeve Front 72267FB 1954 (Fits: International Harvester R121)
Brand New: National$42.23Estimated delivery dateEst. delivery Sat, May 18Engine Conversion Gasket Set fits 1950-1970 International AB120,AM120,AM130 M110 (Fits: International Harvester R121)
Brand New: Victor Reinz$135.98Engine Conversion Gasket Set Fel-Pro CS 7799 (Fits: International Harvester R121)
Sold Individually - Fast Free ShippingBrand New: Fel-Pro$86.99Fel-Pro VS 12270 C Valve Cover Gasket Set For Select 50-70 International Models (Fits: International Harvester R121)
Sold Individually - Fast Free ShippingBrand New: Fel-Pro$24.99Was: $30.99Engine Piston Ring Set-Eng Code: BD220 Sealed Power E-135X (Fits: International Harvester R121)
Brand New: Sealed Power$61.95Free shippingOil Cap AMC BUICK CHEVROLET FORD GMC INTERNATIONAL IHC MERCURY PONTIAC (Fits: International Harvester R121)
Brand New$16.99Top Rated Plus- Sellers with highest buyer ratings
- Returns, money back
- Ships in a business day with tracking
$5.99 shippingFor 1953-1955 International R121 Head Gasket Set Felpro 37272XH 1954 3.6L 6 Cyl (Fits: International Harvester R121)
Head GasketBrand New: Fel-Pro$97.34Free shippingEngine Conversion Gasket Set-Base Fel-Pro CS 7799 (Fits: International Harvester R121)
Brand New: Fel-Pro$83.95Estimated delivery dateEst. delivery Sat, May 18Engine Cylinder Liner-Stock Melling CSL123 (Fits: International Harvester R121)
Brand New: Melling$36.34Free shippingEngine Oil Pan Gasket Set Fel-Pro OS 34401 C (Fits: International Harvester R121)
Brand New: Fel-Pro$17.09Engine Push Rod Gasket Set Fel-Pro PS 5844 C (Fits: International Harvester R121)
Brand New: Fel-Pro$16.52Trending at $17.29eBay determines this price through a machine learned model of the product's sale prices within the last 90 days.For 1955 International R121 Relay SMP 88672MSSZ Horn Relay -- 12 Volt (Fits: International Harvester R121)
Brand New: Standard$25.88Free shippingFor 1953-1955 International R121 Crankshaft Seal Front 97192KX 1954 3.6L 6 Cyl (Fits: International Harvester R121)
Brand New: National$34.49Estimated delivery dateEst. delivery Sat, May 18For 1955 International R121 Relay SMP 75453BHZQ Horn Relay -- 12 Volt (Fits: International Harvester R121)
Brand New: Standard$23.51Free shippingEngine Timing Cover Seal-Crankshaft Seal National 7581H (Fits: International Harvester R121)
Brand New: National Seal/Bearing$28.70Free shippingEngine Piston Ring Set fits 1950-1968 International AB120,AM120,AM130 AB140 S132 (Fits: International Harvester R121)
Brand New: Sealed Power$143.27Engine Valve Cover Gasket Set Fel-Pro VS 12270 C (Fits: International Harvester R121)
Brand New: Fel-Pro$18.46Engine Timing Cover Repair Sleeve-Crankshaft Repair Sleeve National 99248 (Fits: International Harvester R121)
Brand New: National Seal/Bearing$39.20Free shippingIntake & Exhaust Gasket Set Fel-Pro MS9341S (Fits: International Harvester R121)
Brand New: Fel-Pro$29.12Free shippingHastings Piston Ring Set 135 for STD Bore Engines - Not OVERSIZED (Fits: International Harvester R121)
Please check for appropriate bore size before orderingBrand New: Hastings Mfg Co$71.52Free shippingEngine Piston Ring Set Sealed Power E-135X (Fits: International Harvester R121)
Brand New: Sealed Power$76.70Free shippingEngine Piston Ring Set Sealed Power E-135X (Fits: International Harvester R121)
Brand New: Sealed Power$61.95For 1953-1955 International R121 Valve Cover Gasket Set Felpro 45426WDMJ 1954 (Fits: International Harvester R121)
Brand New: Fel-Pro$22.03Free shippingFor 1953-1955 International R121 Valve Cover Gasket Set Felpro 67196KTZM 1954 (Fits: International Harvester R121)
Brand New: Fel-Pro$23.09Free shippingNew Listing3153 Engine Cylinder Head Gasket for MAHLE (Fits: International Harvester R121)
Brand New: Mahle$46.65or Best OfferFree shippingEngine Push Rod-Stock Melling MPR-205 (Fits: International Harvester R121)
PRICE IS FOR 4 - ADJUST QTY AS NEEDED.Brand New: Melling$34.90Free shippingFor 1953-1955 International R121 Relay SMP 79161JFMX 1954 Horn Relay (Fits: International Harvester R121)
Brand New: Standard$33.23Free shippingEngine Cylinder Head Gasket Set Fel-Pro HS 7799 CS-2 (Fits: International Harvester R121)
Brand New: Fel-Pro$70.73$27.45 shippingOnly 1 left!Mechanical Lifter Sealed Power AT2041 (Fits: International Harvester R121)
Brand New: Sealed Power$32.35Free shippingEngine Cylinder Head Gasket Set Fel-Pro HS 7541 CS (Fits: International Harvester R121)
Brand New: Fel-Pro$96.95Relay 31CHZP47 for L110 L111 L112 L120 L121 L122 L150 L151 L153 LB140 LM120 (Fits: International Harvester R121)
Brand New: Standard$36.05Free shippingNational 473463 Oil Seal For Select 50-86 International Jeep Models (Fits: International Harvester R121)
Sold Individually - Fast Free ShippingBrand New: National Seal/Bearing$13.09Was: $20.99Melling M-28E Stock Replacement Oil Pump For Select 50-70 International Models (Fits: International Harvester R121)
Sold Individually - Fast Free ShippingBrand New: Melling$257.99Was: $352.99Intake and Exhaust Manifolds Combination Gasket VICTOR REINZ 71-14727-00 (Fits: International Harvester R121)
Price is for 1 item, even if image shows more than 1.Brand New: Victor Reinz$47.04