239-4407: SPRING
239-4409: ROD
239-4415: 30mm Diameter Steel Idler Recoil Spring Rod
239-5509: Track Link Ring Set
239-7933: GEAR-PLNTY-GD
239-8090: Track Idler Block
239-8091: Track Idler Block
239-8240: 616mm Free Length Compression Spring
239-8242: Track Adjuster Recoil Spring Pilot
239-8245: 60mm Outer Diameter Recoil Spring Piston
239-8258: SHAFT AS XL
240-2988: Track Guide Undercarriage Roller Guard