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Mack AIRTEK® (Hendrickson) with Steertek® & Steertek® NXT Axles Front Suspensions

Steertek®, Steertek® NXT Axles, and post 2007 engines have parts differences

Mack Airtek Front Suspension Parts

1 60716-002 Air Spring
2 (Special Order)  Air Spring Bracket; Specify Capacity 266mm or 300mm
3 Unavailable Front Hanger
4* 334-1758 Service Kit for Front Hanger (Late models use inner adapter only)

Springs

5 Hendrickson AIRTEK® Front Leaf Springs

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6 (Special Order) Top Plate (Replace Bolted Style with U-Bolts; Specify LH/RH, Frame Rail Hgt, with or without NXT Axle)
7 325-244 Bump Stop
8 (Special Order) Spacer; OEM 64318-xxx; Specify Thickness; LH/RH May Differ
8 (Special Order) Spacer; OEM 64318-28; NXT Axle
9 (Special Order) Seat; OEM 59952-17; without NXT Axle
10 334-1752 Dowel Pin 2 5/8" L
10 334-1755 Dowel Pin 3 1/8" L (Special Order) OEM 57159-7
10 (Special Order) Dowel Pin 3 3/8" L, OEM 57159-12
10 334-1756 Dowel Pin 3 3/4" L OEM 57159-8
10 334-1757 Dowel Pin 4 1/4" L OEM 57159-9
10 (Special Order) Dowel Pin 4 1/2" L, OEM 57159-13
11 334-1731 Service Kit, Axle/Seat Liners (without NXT Axle)
12 (Special Order) Bottom Plate (without NXT Axle) OEM 64772-3
13* 334-1759 Service Kit, Clamp Bolt, M20 x 220mm L (STEERTEK® & Pre 07 Engines, 13 1/4" Ride Height) OEM 60961-35
13* 334-1760 Service Kit, Clamp Bolt, 250mm L (>03/05; Pre 07 Engine w/Dual HCV; 12/12.5k Axle w/Single HCV; 14 1/2" Ride Height) OEM 60961-36
13* 334-1761 Service Kit, Clamp Bolt, M20 x 230mm L (<07; Steertek & Pre 07 Engines; 14 3/8" Ride Height) OEM 60961-37
13* (Special Order) Service Kit, Clamp Bolt, 260mm L (<03/05; 13.2k & 14.6k Axles w/Single HCV; 14 1/2" Ride Height)
14* (Special Order) Service Kit, U-Bolt (Specify Capacity, Ride Height & Axle Drop; Post 07 Engines, <7/11) (2 per Top Plate)
14* (Special Order) Service Kit, U-Bolt (Specify Ride Height; NXT Axles) (2 per Top Plate)
15 (Special Order) Shock Absorber 341-64838-3 later than 07/11 OEM 64838-3
15 (Special Order) Shock Absorber 341-64838-2 earlier than 07/11 OEM 64838-2
16 (Special Order) Shock Bracket earlier than 07/11, OEM 64241-1
16 (Special Order) Shock Bracket later than 07/11, OEM 59423-8
17* 334-772 Bolt Kit 5/8"-18 Thread x 3 1/2" L
17* 334-768 Bolt Kit 5/8"-18 Thread x 4 1/2" L
18 334-1765 Height Control Valve Assembly (12.0k & 12.5k Axles; Single HCV Vehicles; <03/05)
18 334-1766 Height Control Valve Assembly (13.2k & 14.6k Axles: Single HCV Vehicles; <03/05)
18 334-1943 Height Control Valve Assembly, LH Dual (Special Order) OEM 59427-25, 59427-10
18 334-1944 Height Control Valve Assembly, RH Dual (Special Order) OEM 59427-26, 59427-12
18 Unavailable Height Control Valve Assembly (>12/07)
19 334-751 Universal Adjustable Linkage Assembly (3 5/8"-19 5/8" Range; All Height Control Valves)
20 334-1763 Height Control Valve (Valve Only; Single HCV Vehicles <03/2005) (Special Order)
20 Unavailable Height Control Valve (>12/07)
21* 330-349 Shackle Kit, earlier than 07/11; later than 07/11 Use without Oval Thrust Washers (334-1749)(Special Order)
22 334-1749 Thrust Washer earlier than 07/11 (Special Order)
23* 334-1767 Service Kit, Shackle Stop <07/11 (Special Order)
24* 334-1656 Bolt Kit M20-2.5mm Thread x 160mm L (3 per Shackle)
25 338-1935 Shackle Hanger, LH; 266mm (10 1/2") Frame <07/11 OEM  64175-1 (Special Order)
25 338-1936 Shackle Hanger, RH; 266mm (10 1/2") Frame <07/11 OEM 64175-2 (Special Order)
25 338-1937 Shackle Hanger, LH; 300mm (11 3/4") Frame <07/11 OEM 64176-1 (Special Order)
25 338-1938 Shackle Hanger, RH; 300mm (11 3/4") Frame <07/11 OEM 64176-2 (Special Order)
25 (Special Order) Shackle Hanger, LH; 266mm (10 1/2") Frame >07/11 OEM 68548-1 (Special Order)
25 (Special Order) Shackle Hanger, RH; 266mm (10 1/2") Frame >07/11 OEM 68548-2 (Special Order)
25 (Special Order) Shackle Hanger, LH; 300mm (11 3/4") Frame >07/11 OEM 68554-1 (Special Order)
25 (Special Order) Shackle Hanger, RH; 300mm (11 3/4") Frame >07/11 OEM 68554-2 (Special Order)
26 (Special Order) Axle Assembly OEM 64905-xxx

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