GM Service Manual Online
For 1990-2009 cars only

Pump Type

Engine RPO

Engine Size

High Flow Settings GPM

High Flow Settings LPM

Relief Valve Settings kPa (PSI)

Hobourn S600

    • 1573506
    • 15738085
    • 15023564
    • 15150553

LG5

7.2L

3.2 / 3.9

14.5 / 17.5

14875 (2159)

Hobourn S600

15023753

LG5

7.2L

4.1 / 4.8

18.5 / 21.5

14875 (2159)

Hobourn S600

    • 15988452
    • 15025029

LG5

7.2L

3.2 / 3.9

14.5 / 17.5

16980 (2464)

ZF

L18

8.1L

3.3 / 3.8

15.0 / 17.0

14985 (2175)

All pressures are with engine at normal operating temperature.