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Mfr.
Sierra
| Mfr No. 18-2303
Sierra, Anchor Screw Set, Mercruiser, 18-2303. Replaces 10-20518...
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$0.96
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Mfr.
Sierra
| Mfr No. 18-9812
Bearing and Seal Installation Tool. Installs shifter shaft bushings on all Bravo drive units
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$58.50
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Mfr.
Sierra
| Mfr No. 18-9858
Bearing Carrier Retainer Wrench. Removes and installs bearing carrier retainer nuts on MC-1, R-MR, Alpha One, Alpha One Gen II, and Bravo One and Two drives
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$80.45
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Mfr.
Sierra
| Mfr No. 18-9831
Installs forward gear bearing cup in gear housing of MC-1, R-MR, and Alpha One drive units
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$31.76
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Mfr.
Sierra
| Mfr No. 18-9826
Installs upper drive shaft bearing cup in the drive shaft housing of MC-1, R-MR, and Alpha One drive units
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$28.49
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Mfr.
Sierra
| Mfr No. 18-9839
Installs bearing cup in top cover of drive shaft housing of MC-1, R-MR, and Alpha One drive units
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$25.08
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Mfr.
Sierra
| Mfr No. 18-9863
Installs bearing carrier seals on Bravo One and Two drives
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$58.22
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Mfr.
Sierra
| Mfr No. 18-9862
Bearing Driver installs drive shaft bearing onto drive shaft
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$16.18
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Mfr.
Sierra
| Mfr No. 18-9873
Installs u-joint oil seal into bearing carrier, also used to pilot the puller rod for gear housing needle bearing installation on all Bravo One and Two drives
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$72.51
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Mfr.
Sierra
| Mfr No. 18-9849
Removes and installs bearings in MC-1, R-MR, Alpha One, Alpha One Gen II and all Bravo gear cases
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Request Availability
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Mfr.
Sierra
| Mfr No. 18-2840
Bell Housing Gasket - Mercruiser - 18-2840. Replacement for Mercruiser Inboard/Outboard #27-35982. 5 per package...
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$2.78
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Mfr.
Sierra
| Mfr No. 18-2645
Bravo Lower Unit Seal Kit, 18-2645. Replaces: Mercruiser Inboard/Outboard #26-76868A2. For Bravo I, II, III drive systems...
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$67.59
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Mfr.
Sierra
| Mfr No. 18-2516
Bravo Outdrive Seal, 18-2516. Replaces: Mercruiser Inboard/Outboard #16755...
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$6.18
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Mfr.
Sierra
| Mfr No. 18-9811
Used to install and remove shifter shaft bushings on all Bravo drive units
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$12.64
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Mfr.
Sierra
| Mfr No. 18-9843
Holds preload while checking backlash and bearing preload on Bravo One and Two drives
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$48.18
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Mfr.
Sierra
| Mfr No. 18-9866
Secures dial indicator to gear housing when checking backlash on MC-1, R-MR, Alpha One, TR, and TRS drives
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$28.46
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Mfr.
Sierra
| Mfr No. 18-9855
Measures upper drive gear clearance on MC-1, R-MR, Alpha One and Alpha One Gen II drives
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$161.24
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Mfr.
Sierra
| Mfr No. 18-2180
A Mercruiser drive system drive shaft is for all MR/ALPHA Units & older which have been retro-fitted with MR/ALPHA lower units
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Request Availability
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Mfr.
Sierra
| Mfr No. 18-2324
For Gen II S/N F680000 and up
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$78.85
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Mfr.
Sierra
| Mfr No. 18-2261
Lower Drive Shaft For all Alpha I Gen II (s/n OD469859-OK999999) drives with new style impeller(MMD47-01814) with floppy vanes
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$342.29
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Mfr.
Sierra
| Mfr No. 18-2331
Lifetime warranty on Sierra Drive Shafts and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine part technicians available.
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$508.68
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Mfr.
Sierra
| Mfr No. 18-9868
Provides a wrench surface to turn the propeller shaft on MC-1, R-MR, Alpha One, Alpha One Gen II, and Bravo One and Two drives
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$32.65
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Mfr.
Sierra
| Mfr No. 18-9854
Provides a wrench surface to turn the drive shaft on MC-1, R-MR, Alpha One and Alpha One Gen II drives
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$31.92
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Mfr.
Sierra
| Mfr No. 18-9865
Presses bearing cone onto Alpha One Gen II drive shaft housing pinion gear
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$47.43
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Mfr.
Sierra
| Mfr No. 18-2756
Replacement for Mercruiser Inboard/Outboard #86840A3. Fits all #2 Bravo.
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$38.36
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Mfr.
Sierra
| Mfr No. 18-2556
Drive Shaft Housing to Bell Housing Gasket, 18-2556. Replaces: Mercruiser Inboard/Outboard #27-35996...
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$13.00
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Mfr.
Sierra
| Mfr No. 18-2743
Drive Shaft Housing to Bell Housing Gasket, 18-2743. Replaces: Mercruiser Inboard/Outboard #27-94996-2...
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$6.64
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Mfr.
Sierra
Drive Shaft Housing-Bell Housing Gasket - Mercruiser, 18-2847. Replacement for Mercruiser Inboard/Outboard #27-54014. Models E, H, TR, TRS...
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$10.78
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$23.75
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Mfr.
Sierra
| Mfr No. 18-2820
Replacement for Mercruiser Inboard/Outboard #27-64818.
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$4.87
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Mfr.
Sierra
| Mfr No. 18-9842
Removes and installs threaded bearing retainer on Alpha drives
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$33.56
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Mfr.
Sierra
| Mfr No. 18-9848
Removes and installs bearings in MC-1, R-MR, Alpha One, Alpha One Gen II and all Bravo drives
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$30.00
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Mfr.
Sierra
| Mfr No. 18-9833
Removes and installs bearings in MC-1, R-MR, Alpha One, Alpha One Gen II and all Bravo drives
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$27.77
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Mfr.
Sierra
| Mfr No. 18-9822
Removes and installs bearings in MC-1, R-MR, Alpha One, Alpha One Gen II and all Bravo drives
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$25.03
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Mfr.
Sierra
| Mfr No. 18-9824
Installs needle bearing in the forward gear and removes and installs seals and bearing in the gimbal housing of MC-1, R-MR, and Alpha One drive units
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$22.48
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Mfr.
Sierra
| Mfr No. 18-9834
Removes and installs bearings in MC-1, R-MR, Alpha One, Alpha One Gen II and all Bravo drives
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$31.80
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Mfr.
Sierra
| Mfr No. 18-9821
Installs gimbal bearing in MC-1, R-MR, Alpha One, Alpha One Gen II, and all Bravo drive units
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$35.76
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Mfr.
Sierra
| Mfr No. 18-9823
Installs the small roller bearing in the gimbal housing of MC-1, R-MR, and Alpha One drive units
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$24.88
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Mfr.
Sierra
| Mfr No. 18-9825
Removes and installs lower swivel pin needle bearing in the gimbal ring of MC-1, R-MR, and Alpha One drive units
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$19.81
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Mfr.
Sierra
| Mfr No. 18-9835
Used with various drivers to install bearings on Alpha One, Gen II, Bravo One and Two gear cases
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$13.74
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Mfr.
Sierra
| Mfr No. 18-2620
E, TR, TRS Gasket Set, 18-2620. Replaces: Mercruiser Inboard/Outboard #27-54014A1...
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$7.25
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Mfr.
Sierra
Gear Housing Drain Screw Gasket - 18-2945. Replacement for Johnson/Evinrude Outboard, Mercury/Mariner Outboard, Mercruiser Inboard/Outboard, Sterndrive/Cobra Inboard/Outboard...
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$0.67
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$2.05
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Mfr.
Sierra
| Mfr No. 18-2684
Gear Housing Seal Kit, 18-2684. For Johnson/Evinrude Outboard gear housing...
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$16.52
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Mfr.
Sierra
| Mfr No. 18-21005
Lifetime warranty on Sierra Gimbal Bearings and other Sierra Engine Parts. Thousands of engine parts, lowest prices, OEM and Sierra engine part technicians available.
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$55.83
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Mfr.
Sierra
| Mfr No. 18-9861
Removes and installs hinge pins from all Mercury drives
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$16.79
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Mfr.
Sierra
| Mfr No. 18-0342
Hydraulic Connector Gasket, 18-0342. Replaces: Mercruiser Inboard/Outboard #27-47644-1...
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$1.12
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Mfr.
Sierra
| Mfr No. 18-0388
Hydraulic Connector Gasket, 18-0388. Replaces: Mercruiser Inboard/Outboard #27-98823-1...
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$1.39
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Mfr.
Sierra
| Mfr No. 18-9864
Bushing-Bearing-Seal Driver. Installs Bravo transom assembly bushings, bearings and seals
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$28.99
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Mfr.
Sierra
| Mfr No. 18-2322
Intermediate Shaft Assembly - Mercruiser.
Replaces: 62104-1
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$37.26
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Mfr.
Sierra
| Mfr No. 18-2652
Lower Gear Housing Seal Kit, 18-2652. Replaces: Mercruiser Inboard/Outboard #26-33144A2...
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$37.07
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Mfr.
Sierra
| Mfr No. 18-2747
- Replaces: Mercruiser Inboard/Outboard #816431A1
- For Alpha I and Gen II
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$33.48
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Above is the price you will be charged if you purchase this item(s). We do not show this price on the advertised page
because your price is below the manufacturer's suggested advertised price.
Post a question or comment about Mercruiser Drive Units & Parts to our online boating community.
Gaskets
Hi,
I am in the process of replacing my starboard engine on 1988 Sea Rey Weekender 300. THe engine is marine Mercruiser 350 5.7 260hp.reverce rotation. I figured I would need to reinstall flywheel w/ bellhousing and a transmission on new engine. Need all associated gaskets for that job. Is this the one that I need? what are the otehr gaskets I would need (transmission side only)?
Thankyou
Georgiy Submitted by: Georgiy
no power to prop
I have a 204hp merc inboard. Yesterday in use it was running fine. Now prop does not turn a lot of engine power. This motor has not been used in a couple years. What could be wrong? Oh, it is a 1975 boat —thank you Submitted by: JACK
Check the engine coupler. It may be spun.
Hydraulic Lines
I have an old 1977 Mercruiser (SeaRay) and the hydraulic line that goes to the intermediate housing below the engine broke. How do I access the end under the motor prior to going through the transom
Thanks Submitted by: Jim
Sometimes it helps to remove the exhaust manifold depending on what model engine you have.
throttle linkage Merc or Perfect Pass?
I have a piece of my throttle linkage broken. It’s a 2002, 5.7 ltr Merc. It is plastic and odd shaped to get around to other motor components. I also have a Perfect Pass. I’m not sure if its Merc or Perfect Pass, but, I need to ID and order a replacement part. I have a picture of the broken piece. serial number: 0M009113 Submitted by: Todd
Can I replace an engine coupler 18-2173 with a 18-2172?
Can I replace an engine coupler 18-2173 with a 18-2172? Submitted by: Luis
No - 18-2172 is for a GM small block. 18-2173 is for a Ford small block.
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Thank you for your submission. Most questions and comments are typically posted with a response within 2 business days.
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