6754-61-4110 Engine Belt Tensioner for PC200-8 PC240-8

6754-61-4110 Belt Tensioner for Komatsu 6D107E Engine

The 6754-61-4110 belt tensioner is supplied for Komatsu engine accessory drive system repair. It is commonly searched as 6754-61-4110, 6754614110, Komatsu belt tensioner, Komatsu 6D107E belt tensioner, PC200-8 belt tensioner, PC240-8 belt tensioner, engine belt tensioner or tensioner pulley for Komatsu excavator repair.

This page focuses on 6754-61-4110 as the main part number. Ref cross numbers include 6754-61-4111, 6754614111, 6743-61-4120, 6743614120, 6742-01-5219, 6742015219, 6743-61-4210 and 6743614210. Final fitment should be confirmed by the old part number, engine model, pulley diameter, belt groove type, mounting holes, bracket shape, arm angle and belt path before ordering.

Engine and Machine Reference

Common engine references for this belt tensioner include Komatsu SAA4D107E and SAA6D107E. Common machine references include Komatsu PC130-8, PC200-8, PC220-8 and PC240-8 excavators.

The belt tensioner works in the engine accessory drive system to help maintain stable belt tension and correct belt alignment. Depending on the engine arrangement, it may work around the fan drive, alternator drive, water pump drive, air conditioning compressor drive or other belt-driven engine accessories.

Machine model alone is not enough for final confirmation. Komatsu excavators may use different belt drive arrangements depending on engine version, production configuration, accessory layout and repair history. The removed tensioner and old part number are more reliable than the machine model alone.

Part Number and Ref Cross Notes

6754-61-4110 is the main identifying number of this product page. 6754614110 is the no-hyphen writing format and can be kept for search matching.

Ref cross numbers for this belt tensioner include 6754-61-4111, 6754614111, 6743-61-4120, 6743614120, 6742-01-5219, 6742015219, 6743-61-4210 and 6743614210. These numbers are included because they are commonly listed together for the same Komatsu belt tensioner direction.

Even when part numbers are listed together, final replacement should still be checked by the old tensioner, package label, pulley structure and mounting position. Similar Komatsu belt tensioners may differ by pulley diameter, belt groove, bracket shape, arm angle, spring tension, mounting hole position and belt alignment.

How to Confirm the Correct Belt Tensioner

Belt tensioners can look similar in product photos, but small structural differences may affect installation and belt operation. Please compare the removed part carefully before ordering.

• Confirm whether the old part number is 6754-61-4110 or one of the listed ref cross numbers.

• Check whether the engine reference is Komatsu SAA4D107E or SAA6D107E.

• Check whether the machine reference is PC130-8, PC200-8, PC220-8 or PC240-8.

• Compare the pulley diameter, pulley width and belt groove type.

• Check the mounting hole position, bracket shape and arm angle.

• Send photos of the old tensioner number, front side, rear side, pulley side, mounting bracket and engine nameplate before quotation if you are not sure.

Common Belt Tensioner Failure Symptoms

A belt tensioner may need replacement when the engine has belt noise, belt slipping, unstable belt tension, worn pulley bearing, pulley wobble, belt edge wear, abnormal vibration, weak spring tension or repeated belt damage.

Before replacing the tensioner, check the belt condition, pulley alignment, idler pulley, fan drive, alternator pulley, water pump pulley and mounting bracket. Some belt problems may be caused by misalignment, worn pulleys or damaged accessories rather than the tensioner alone.

If the old tensioner failed because of belt misalignment, pulley seizure, bearing damage or incorrect belt installation, the root cause should be corrected before installing the replacement tensioner. Otherwise, the new tensioner may fail early.

Installation and Testing Notes

Before installation, turn off the engine and inspect the complete belt drive system. Make sure the mounting surface is clean, the belt path is correctly routed and the related pulleys rotate smoothly.

After installation, check belt tension, pulley alignment and pulley rotation. The belt should run smoothly without jumping, abnormal noise, vibration or side wear.

After the first running test, inspect the belt and tensioner again. If the belt moves out of line or the tensioner vibrates abnormally, stop the engine and recheck pulley alignment, bracket position and accessory drive condition.

Buying Notes for Repair Shops and Parts Distributors

For repair shops, this 6754-61-4110 belt tensioner is suitable for Komatsu engine accessory drive repair when the old tensioner is worn, noisy, weak, misaligned or unable to maintain stable belt tension.

For parts distributors, it can be supplied as a Komatsu PC130-8, PC200-8, PC220-8 and PC240-8 belt tensioner reference for heavy equipment repair demand. Topvelsun supports small repair orders and bulk inquiries. Please send the required quantity, old tensioner number, engine model, machine model and photos of the old tensioner from multiple angles.

FAQ

What is the main product on this page?

This page is for the 6754-61-4110 belt tensioner used for Komatsu engine accessory drive system repair.

Is 6754614110 the same search format as 6754-61-4110?

6754614110 is the no-hyphen writing format of 6754-61-4110. Buyers may search either format, so both formats can be kept on the page.

What are the ref cross numbers for 6754-61-4110?

Ref cross numbers include 6754-61-4111, 6754614111, 6743-61-4120, 6743614120, 6742-01-5219, 6742015219, 6743-61-4210 and 6743614210.

Which Komatsu engine references should be checked?

Common references include Komatsu SAA4D107E and SAA6D107E engines. Please still confirm the old tensioner number, pulley size, belt groove type and mounting structure before ordering.

Can I confirm this belt tensioner by machine model only?

No. Machine model is only a reference. Please check the old part number, pulley diameter, groove type, mounting holes, bracket shape, arm angle and belt alignment before ordering.

What photos should I send before ordering?

Please send photos of the old tensioner number, front side, rear side, pulley side, mounting bracket, belt groove, engine nameplate and machine nameplate. These photos help confirm whether 6754-61-4110 is the correct belt tensioner.