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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 equipping, among others, SEADOO GTS, GTX, GTX PRO, and WAKE models. It includes the connecting rod bearings (6 pieces) and the crankshaft bearings (8 pieces), corresponding to OEM references 420933456 / 420933466 / 420933523. Ideal for an engine overhaul at the start of the season or as a replacement following observed wear, this kit ensures the maintenance of operating clearances and the longevity of the bottom end.

Technical Specifications

OEM reference: 420933456 / 420933466 / 420933523
Brand: BLDR
Type: Connecting rod bearings + crankshaft bearings
Connecting rod journal diameter (STD): 45 mm
Crankshaft diameter (STD): 50 mm
Connecting rod kit content: 6 pieces
Crankshaft kit content: 8 pieces
Material: Aluminum and tin alloy
Condition: New
Weight: 0.2 kg
Regulated substances: None
Certification: ISO 9001
Installation: By a qualified mechanic – prior cleaning of the connecting rod and crankshaft is 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 machining — 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 engine bottom end. Subjected to high pressures and temperatures, they ensure smooth rotation between moving parts and protect the crankshaft. Premature wear or lack of lubrication can lead to irreversible engine damage.

Knocking sound at start-up or during acceleration
Abnormally low oil pressure
Excessive play on the 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 journal shows signs of wear, scoring, or out-of-roundness, the mechanic performs a regrind: the operation involves machining the journal to restore perfectly circular geometry and a smooth surface. This machining reduces the diameter of the journal by a precise, standardized value, called the repair size.

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

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

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