POLYFORCE BELT TENSIONERS K5 638667 Mfg. # Detroit Diesel: A4722000470, A4722000570, AE4722000270, EA4722000270, EA4722000570, EA4722001070 Freightliner: A4722000170, A4722000270, EA4722000470, EA4722000970 K5 689448 OEM # 38610, 49582, 89448, 3104149, 3682683, D1186-2633, 38567, 3690067 K5 689440 Mfg. # Freightliner: N/A Peterbilt: 3682946 Kenworth: 3682946 Mack: 3682946 K5 689477 Mfg. # Volvo: 21568413, 21454379 K5 689419 Mfg. # Freightliner: 0127425000 ◊ No Springs Attached Conventional belt tensioners use springs to hold their position and tension. However, springs can only flex so many times before they fail. PolyForce Belt Tensioners replace this spring with a New and unique Polymer Torsion Core. A longer lasting compressed polymer replaces the spring, thereby eliminating the primary cause of failure. The Polymer Torsion Core also doubles as a builtin damper, reducing stress on adjacent accessories without additional damage to the belt tensioner. ◊ Improved Bearings Pulley bearing absorbs a huge amount of vibration and can often fail too soon. To extend bearing life, PolyForce tensioners feature heavy-duty bearing that have a 40% higher load rating than the OEM and feature Anti-Vibration Grease, which won’t separate. Standard PolyForce PULLEY PolyForce pivot bushings OEM pivot bushings Misaligned ◊ Alignment - Wider is Better Misaligned belt tensioners lead to damaged tensioners, belts & accessories. A worn pivot bushing is typically the culprit of misalignment. PolyForce pivot bushings have a much wider stance, giving them drastically increased stability. 2 Year / 200,000 Mile WARRANTY PolyForce Belt Tensioner Kit K5 TB-001 Contains everything you need to identify and assemble a brand new belt tensioner in a matter of minutes! INCLUDED IN THE MOBILE REPAIR KIT: Pulleys (x6), Arms (x5), Housings (x14) Part No. Engine Application OEM Part No. International / Navistar OSCUS3712 DTA-360A & DT466 ( left hand thread) 1815538, 1815538C91 Detriot Diesel Series OSCUS60P 60 -LATE & SERIES 50 (Kangaroo Pouch) 23522707, 23522721, 23526039, 23539601 OSCUS2129 60 12.0L EGR 23530427, 23531257, 23532542, 23535017 OSCUS0401 DD13 DD15 Mechanical EA 472 200 01 01, EA 472 200 04 01 Mack OSCUS2304 MP-7, MP-8, MP-10 21468472, 22197709 PACCAR / DAF OSCUS320 MX13 192939, 1917690, 1945428, 1953276, 1956779, 2042162, 1912939R, 2042162PE, 2042162R - 1 year warranty from date of install regardless of miles - US3712 US320 US60P US2129 US0401 US2304 WATER PUMPS, CONTINUED
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