3-Ton Forklift Clutch Pressure Plate — 275mm Diaphragm Type for CPCD30 / FD30 / 7FD30

This is the clutch pressure plate (cover assembly) specifically dimensioned for 3-ton diesel forklift drivetrains — a different component from the 2-ton or 3.5-ton versions that share similar outward appearance but have different spring rates, clamp loads, and bolt circle diameters. The 3-ton class (Heli CPCD30, TCM FD30, Toyota 7FD30) uses a 275mm clutch disc paired with this pressure plate, and the diaphragm spring inside is calibrated for the torque output of 4-cylinder diesel engines in the 40-55 kW range. Installing a pressure plate spec’d for a 2-ton forklift on a 3-ton machine will result in clutch slippage under rated load within the first hundred hours — the clamping force simply won’t hold. Conversely, a 3.5-ton-spec pressure plate on a 3-ton truck won’t physically bolt up because the mounting bolt pattern and dowel pin locations differ between the two classes. This is why OEMs carry separate part numbers for each capacity class despite the 275mm disc diameter being shared across 2-3.5T.

The most common reason a pressure plate fails before the clutch disc wears out on a 3-ton forklift is diaphragm spring finger wear — the release bearing rides against the tips of the diaphragm fingers, and when the bearing seizes or runs dry, it eats into the finger tips within a single shift. You’ll feel it as a clutch pedal that suddenly gets heavier, then starts vibrating under your foot. By the time you feel the vibration, the fingers are already grooved and the pressure plate is scrap. A secondary failure mode specific to 3-ton machines in high-cycle applications (container stuffing, cross-docking) is heat spotting on the pressure ring friction surface — shiny blue-black hardened patches that cause clutch judder on engagement and cannot be machined out because they extend below the surface hardening depth. If you see heat spots when the transmission is split, do not attempt to resurface — the hardened spots will chew through a new disc within weeks. Replace the pressure plate as a complete unit.

Direct replacement for the OEM pressure plate on Heli CPCD30, Hangcha CPCD30, TCM FD30, Toyota 7FD30/7FG30, Komatsu FD30/FG30, and Lonking LG30D — specifically the 275mm diaphragm-spring type with the 3-ton bolt pattern. Always verify your mounting bolt circle diameter (typically 6-bolt or 8-bolt depending on flywheel housing) and the diaphragm finger height against your existing unit before installation, as there are mid-production changes on some Heli and TCM models that use a shallower-dish cover. Replace the release bearing simultaneously (the old bearing will have worn into the old fingers and won’t seat correctly on a new plate) and torque the mounting bolts in a star pattern to the flywheel specification. For matching clutch discs, browse our clutch disc category. Reference OEM part numbers at Heli official website.

Technical Specifications

• SKU: PRESSURE-PLATE-3T-275
• Key Differentiator: 275mm — 3-Ton Specific Spring Rate & Bolt Pattern (NOT compatible with 2T or 3.5T)
• Clutch Disc Compatibility: 275mm Diameter, 10-Spline Hub
• Spring Type: Diaphragm (Belleville) Spring, Cast Iron Cover
• Bolt Pattern: 6-Bolt / 8-Bolt (Verify Against Your Flywheel Housing)
• Application: 3-Ton Diesel Forklifts — CPCD30, FD30, 7FD30 Series
• Warranty: 12 Months

Compatible Forklift Models (3-Ton Only — Not for 2T or 3.5T)

Kingstream pressure plates are factory-balanced as a complete assembly, individually wrapped in VCI anti-corrosion paper, and packed in rigid cartons with molded foam inserts. Each unit is inspected for diaphragm finger height consistency (tolerance ±0.3mm across all fingers), pressure ring flatness (≤0.05mm), and dynamic balance before shipment. 12-month replacement warranty. Contact us with your forklift model and flywheel housing bolt pattern for fitment verification or bulk pricing.