Sierra Marine Parts Catalog
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ACCESSORIES—TOOLS&SHOPSUPPLIES
FOR COMPLETE TOOL ASSORTMENT SEE PAGE 173
DRIVE SHAFT
SHIMMING TOOL
Replaces: Mercury Marine 91-42840T
Description: Shims pinion gear on Bravo
One drives.
INSTALLER ASSEMBLY
Replaces: Mercury Marine 91-43578A1
Description: Installs Bravo transom assem-
bly
bushings, bearings and seals.
U-JOINT ADAPTER
Replaces: Mercury Marine 91-38756
Description: Supports yoke when
disassembling u-joint on all drive units.
PULLER
Replaces: Mercury Marine 91-38919
Description: Removes swivel pins from
R-MR and Alpha One gimbal rings.
CLAMP PLATE
Replaces: Mercury Marine 91-43559
Description: Holds preload while checking
backlash and bearing preload on Bravo
One and Two drive units.
SEAL DRIVER
Replaces: Mercury Marine 91-43591T
Description: Installs upper drive shaft oil
seal on Alpha One and Alpha One/Gen II
drive units.
DRIVE SHAFT
RETAINER WRENCH
Replaces: Mercury Marine 91-43506T
Description: Removes and installs threaded
bearing retainer on Alpha stern drives and
outboards.
TAPERED INSERT TOOL
Replaces: Mercury Marine 91-43579
Description: Installs tapered insert retainer
into water inlet hose on all Bravo drive units.
BEARING CUP DRIVER
Replaces: Mercury Marine 91-38918T
Description: Installs bearing cup in top
cover of drive shaft housing of MC-I, R-MR,
Alpha One drive units and outboards.
OIL SEAL DRIVER
Replaces: Mercury Marine 91-55916
Description: Installs oil seals in TR and
Bravo One and Two drive unit bearing
carrier.
PINION GEAR SHIMMING TOOL
Replaces:
Mercury Marine 91-56048T, 91-56048001
Description: Measures pinion height of
MC-I, R-MR, Alpha One and Alpha One/
Gen II drive units.
BACKLASH INDICATOR
Replaces: Mercury Marine 91-53459
Description: Checks gear backlash on TR,
TRS, MC-I, R-MR, Alpha One, Alpha One/
Gen II and Bravo One and Two drive units.
BEARING DRIVER
Replaces: Mercury Marine 91-55918
Description: Installs needle bearings in
Bravo One and Two and TR drive unit
bearing carrier.
BELLOWS EXPANDER TOOL
Replaces: Mercury Marine 91-45497A1
Description: Installs exhaust bellows on
MC-I, R-MR, Alpha One, Bravo One and
Two and Blackhawk drive units.
SEAL DRIVER
Replaces: Mercury Marine 91-44110
Description: Installs oil seals in water pump
base on Alpha One and Alpha One/Gen II
drive units and outboards.