An essential engine component, the 320/08598 multi-groove belt (8PK1835) by GX-AFTER. This is a key drive belt for JCB 3CX and 4CX machines (produced after 2005) and many others equipped with the JCB DieselMax / EcoMax engine. This belt transfers drive from the crankshaft pulley to the alternator, water pump, and other accessories. Its precise dimensions (8 grooves, 1835 mm length) ensure a perfect fit and quiet operation.
GX-AFTER is the smart choice for your machine. We provide high-class replacements that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.
| Category | Series | Model and Year |
|---|---|---|
| Backhoe Loaders | 3C / 3CX | 214e/3CX (2005-2014), 3C (2006-2008), 3CX (2004-2010), 3CX SUPER (2009-2010), 3CX TURBO (2005-2010), 3CX TURBO PRECISION CONTROL (2005-2010), Centremount/Sideshift (Direct Control, Advanced Easycontrol, 2WS/AWS) (2008-2022) |
| Backhoe Loaders | 2CX | 2CX (2006-2014), 2CX UTILITY (2006-2011), 2CX-AIRMASTER (2006-2015), 2CXL (2006-2011), 2CXS (2010-2014), 2CXSL, 2CX-SM (2006-2015) |
| Telehandlers (Loadall) | 524-527 Series | 524-50 (2007-2008), 527-55 (2007-2008), 527-55S (2007-2008) |
| Military Products | Standard Military | 524-50M (2007) |
| Site Dumpers | 6-9 Tonne | 6TFT (2015-2017), 6TST (2015-2017), 9TFT (2015-2017), 9TST (2016-2017) |
| Generators | G*RS (Rental) | G70RS T4F (2019-2022) |
| JCB Engines | DieselMax (320/4xxxx) | e.g., 320/40000, 320/40013, 320/40030, 320/40034, 320/40057, 320/40077, 320/40259, 320/40404, etc. |
| JCB Engines | EcoMax (320/5xxxx) | e.g., 320/50013, 320/50016, 320/50017, 320/50018, 320/50973, Dressed Dieselmax, ecoMax, etc. |
The list above is for reference. This belt (320/08598) is used on JCB machines with JCB DieselMax / EcoMax engines (post-2005).
When replacing a multi-groove belt, we strongly recommend inspecting the condition of the belt tensioner and all idler pulleys. Worn bearings in the pulleys or a weak tensioner will destroy a new belt.
A failure of the 320/08598 belt leads to an immediate stoppage of the alternator (loss of charging) and the water pump (loss of cooling). Ignoring the charging warning light and continuing to work will lead to rapid overheating and engine seizure within minutes, resulting in a very costly repair.
The 8PK1835 multi-groove belt transfers drive from the engine's crankshaft pulley to key accessories. Its main job is to simultaneously drive the alternator (which charges the battery) and the water pump (which circulates coolant). In some configurations, it may also drive the fan or A/C compressor.
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This is the standard belt designation. 8PK means the belt has 8 grooves (or ribs). 1835 is its effective length in millimeters (1835 mm).
No. This belt (320/08598) is specifically for machines with the JCB DieselMax or JCB EcoMax engine (usually post-2005). Older machines with Perkins engines have a completely different accessory drive and use different belts.
Squealing is usually a sign of the belt slipping. This can be caused by wear (hardened rubber), cold weather, or, more likely, a faulty automatic tensioner that is not providing enough pressure. Replacing only the belt without checking the tensioner will usually only solve the problem for a short time.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
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Original multi-ribbed belt 1835mm suitable for JCB 3CX 4CX with JCB DieselMax / EcoMax engine after 2005.

















