Hendrickson Truck Parts Catalog

PRIMAAX ® EX•PRIMAAX ®

REAR SUSPENSIONS

■ Technical Notes The following information (Figure 1 through 3) is intended to assist in determining which suspension is equipped on the vehicle. As an example, in Figure 1, the end cap / frame hanger help identify whether the suspension is the current model PRIMAAX EX or the previous production model PRIMAAX (out of production since May 2010). OEM Specific PRIMAAX EX Parts lists are available online at www.hendrickson-intl.com Caterpillar (SP-234) • Freightliner / Western Star (SP-230)• International Truck (SP‑233) • Mack (SP‑231) • Spartan (SP‑342) • Volvo (SP-226)

PRIMAAX EX • PRIMAAX

FIGURE 1

Out of Production May 2010

Support Beam with Detachable End Cap

PRIMAAX

Enhanced U-beamAssembly with Integrated End Cap

PRIMAAX EX

INTEGRATED End Cap

Support Beam

DETACHABLE End Cap

SUSPENSION RATING CAPACITY •

FIGURE 2

S T – designates Small Clamp Group • – designatesTall Ride Height 12½",14 ",15½" 3 8 ⁄

Small Clamp Group Axle Size

Large Clamp GroupAxle Size

DANA AXLE

MERITOR AXLE

134 mm (5.3")

150.1 mm (5.9")

140 mm (5.5")

AXLE

134.8 mm (5.3")

140 mm (5.5")

117 mm (4.6")

Suspension Model: PRIMAAX EX

Suspension Model: 26K•52K•78K | 26KT•52KT•78KT PRIMAAX EX

23K•46K•69K | 23KT•46KT•69KT 26K S•52K S•78K S | 26K ST•52K ST•78K ST

PRIMAAX 230•460•690 | 230T•460T•690T

PRIMAAX 260•520•780 | 260T•520T•780T

U-bolts

U-bolts

4¼"

5"

6¼"

5 / " 9 16

340

www.hendrickson-intl.com | Reference Lit. No. SP-164

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