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Connecting Rod & Crankshaft Bearings SEADOO – GTS 130/155/215, GTX 170/215/260, GTX PRO 130, WAKE 170

€260,00 EUR

Color Standard Crankshaft add 50 connect rod add 25 connecting rods STD connecting rod add 50 in one set add 25 in one set STD one set add 50 vilebrequin add 25 Crankshaft

Description

This connecting rod and crankshaft bearing kit is designed for ROTAX engines, notably equipping SEADOO GTS, GTX, GTX PRO, and WAKE models. It includes connecting rod bearings (6 pieces) and crankshaft bearings (8 pieces), corresponding to OEM references 420933456 / 420933466 / 420933523. Ideal for engine overhaul at the start of the season or as a replacement after observed wear, this kit ensures the maintenance of operating clearances and the longevity of the lower engine.

Technical Specifications

OEM Part Number: 420933456 / 420933466 / 420933523
Brand: BLDR
Type: Connecting rod bearings + crankshaft bearings
Connecting rod pin diameter (STD): 45 mm
Crankshaft diameter (STD): 50 mm
Connecting rod kit contents: 6 pieces
Crankshaft kit contents: 8 pieces
Material: Aluminum and tin alloy
Condition: New
Weight: 0.2 kg
Regulated substances: None
Certification: ISO 9001
Installation: By qualified mechanic – prior cleaning of connecting rod and crankshaft required

Compatibility

This kit is compatible with the following Sea-Doo models equipped with the CAAM Rotax engine:

GTS 130 – 2011-2015, 2016-2017
GTS 130 Rental – 2011-2015
GTS 155 – 2016-2017
GTS 215 – 2016-2017
GTS Pro 130 – 2011
GTX 170 – 2020-2024
GTX 215 (42CA, 42CB) – 2012
GTX 215 (42CS) – 2012
GTX 260 – 2016-2017
GTX iS 215 – 2010-2011
GTX LIMITED 300 – 2021-2024
GTX LTD 215 – 2014-2015
GTX PRO 130 (Rental) – 2021-2024
GTX PRO 130 iBR – 2024
GTX PRO 130 iBR (Rental) – 2021-2024
GTX S 155 – 2012-2015
GTX STD 300 – 2023
WAKE 170 – 2020-2024

⚠️ Always check your serial number (VIN) and the original OEM reference before ordering to confirm exact compatibility with your model. If your crankshaft is worn, the bearings will not fit without prior regrinding — consult your mechanic to determine the necessary repair size.

Why Replace Connecting Rod and Crankshaft Bearings?

Connecting rod and crankshaft bearings are critical wear parts of the lower engine. Subjected to high pressures and temperatures, they ensure sliding between moving parts and protect the crankshaft. Premature wear or lack of lubrication can cause irreversible engine damage.

Knocking noise on startup or acceleration
Abnormally low oil pressure
Excessive play on connecting rod or crankshaft
Abnormal oil consumption
Unusual engine vibrations

Understanding Repair Sizes: STD, +0.25 mm and +0.50 mm

When a crankshaft or connecting rod pin shows signs of wear, scratches, or ovalization, the mechanic performs a regrind: this operation consists of grinding the journal (bearing surface) to restore a perfectly circular geometry and a smooth surface. This grinding reduces the diameter of the journal by a precise and standardized value, called the repair size.

The bearings are then manufactured with a corresponding increased thickness, to compensate for the material removed and to restore the optimal operating clearance prescribed by the manufacturer. Three sizes are available in this kit:

STD (Standard) – Original bearing, for an unground crankshaft or connecting rod pin, to factory dimensions. To be used during preventive replacement on an engine in good condition.
+0.25 mm (add 25) – Bearing increased by 0.25 mm in thickness, intended for a crankshaft or pin ground by a first pass of 0.25 mm. Corresponds to the first repair size.
+0.50 mm (add 50) – Bearing increased by 0.50 mm in thickness, for a larger regrind of 0.50 mm. Corresponds to the second repair size, used when the first regrind is no longer sufficient or when wear is more advanced.

⚠️ The choice of repair size must be determined by a qualified mechanic, using a micrometer, after precise measurement of the reground diameter. An incorrect size would result in unsuitable operating clearance, potentially causing premature engine failure.