CAT 336GC Swing Drive Gearbox – Specification (536-7288)

Description

Product Video

Detail Information

Note: The application information provided is for reference only. Please confirm the part number and compare it with the old component before purchasing. If you have any questions, please feel free to contact us.
It is worth choosing a product that features stable performance, high reliability, easy installation, and quick response.

1. Key Features & Benefits

• Genuine OEM-spec swing drive gearbox – OEM part number 536-7288 (also referenced as DRIVE GP-SWING). Engineered to Caterpillar‘s original equipment specifications for the CAT 336GC and compatible 33–34 ton class excavators. This is a brand‑new, factory‑spec unit – not remanufactured, not a generic substitute.

• Critical component for 360° upper structure rotation – The swing drive, also known as the swing gearbox or swing reducer, is the power transmission component that allows the excavator to rotate on its base. It transfers power from the swing motor through a multi‑stage planetary gear reduction to the swing bearing. This enables the machine to dig and move material from different angles. When this gearbox fails, the machine cannot position itself for efficient digging.

• Direct replacement for CAT 336GC and compatible models – Specifically designed for Caterpillar 336GC, 336, 340, and related 33–34 ton class excavators. Mounting flange, shaft interface, and bolt patterns match the original Caterpillar specifications exactly – no modifications, no adapters.

• Multi‑stage planetary reduction design – The swing drive uses a precision planetary gear train (sun gear, planet gears, ring gear) to achieve the high reduction ratio required for excavator swing applications. This compact planetary design delivers smooth, consistent torque transfer with minimal backlash.

• High torque output for 33‑ton class work – The CAT 336GC delivers a maximum swing torque of 137 kN·m (101,168 lbf·ft) and a swing speed of 8.74 r/min. The swing drive oil capacity is 18 L (4.8 gal US) per side. This provides the rotational power and smooth control needed for precise slewing operations.

• Engineered for the Cat® C7.1 ACERT™ engine – The 336GC is powered by the Cat C7.1 ACERT engine delivering 195–205 kW (261–275 hp). The swing drive is precision‑matched to this power plant, ensuring optimal performance and fuel efficiency.

• Robust construction for extreme conditions – Built with high‑strength materials and precision‑machined components to withstand the extreme shock loads, vibration, and torsional stress generated during swing operations. Premium seals prevent contamination ingress and oil leakage, extending service life.

• Factory-sealed and lubricated – The swing drive is sealed and filled with the correct lubricant. Capacity is 18 L (4.8 gal US) per side. Premium seals prevent contamination ingress and oil leakage.

• Pre-shipment visual verification – Before packing, we send you detailed high‑resolution photographs of the actual unit (mounting flange, splines, port threads, castings, overall condition). You approve shipment – we never ship blind.

• Fast delivery – 5–8 working days lead time from our Guangzhou warehouse. Monthly supply capacity of 300 units, available for single‑piece or bulk orders.

2. Applications

The genuine CAT 536-7288 swing drive gearbox is the power transmission component for the swing system on CAT 336GC and 33–34 ton class excavators used in the most demanding job sites:

• Large‑scale construction & infrastructure – Highway excavation, dam building, bridge footings, and large‑scale earthmoving projects. The swing drive’s high torque output (137 kN·m) and smooth rotation enable precise positioning of the upper structure for efficient loading and digging cycles.

• Quarrying & aggregates – Loading trucks, stockpile management, and material handling in granite, limestone, and basalt quarries. The swing drive’s robust construction and sealed design withstand abrasive dust conditions, while the planetary reduction provides consistent torque for precise bucket control. The 336GC’s improved fuel efficiency (up to 5%) and longer maintenance intervals (reducing costs up to 15%) make it ideal for quarry operations.

• Mining support – Site cleanup, road maintenance, drainage works, and equipment pad grading. A genuine new swing drive provides predictable service life – avoiding costly unplanned downtime in remote mine sites.

• Demolition & scrap processing – Shock loads, vibration, and sharp debris are routine in demolition yards and metal recycling facilities. The swing drive’s heavy‑duty construction and sealed bearings absorb these extreme conditions without premature wear.

• Equipment rental fleet – 33–34 ton excavators are high‑value rental assets. A genuine new swing drive eliminates the gamble of remanufactured or used units – avoiding costly mid‑rental failures, towing bills, and customer complaints. The swing drive is a high‑wear component on rental machines due to constant rotation and varying operator habits.

• Forestry & land clearing – Steep slopes, fallen timber, and uneven terrain demand reliable swing performance. The swing drive’s consistent torque delivery ensures smooth, controlled rotation even under varying load conditions.

3. FAQ – Frequently Asked Questions

Q1: Is this swing drive an exact replacement for my CAT 336GC?

A: Yes. The 536-7288 is the genuine Caterpillar swing drive gearbox for CAT 336GC, 336, and 340 excavators. It also fits models including 336GC, 336, 340, FM548, MH3050, and MH3250. To confirm compatibility for your specific machine variant, send us your machine serial number and a photo of the old drive nameplate – we will verify within 2 hours.

Q2: Is this a new unit or a remanufactured unit?

A: It is brand new / genuine original, not remanufactured. All internal components – gears, bearings, seals, and housing – are new. The swing drive is manufactured to Caterpillar’s original specifications and meets all OEM performance standards.

Q3: What are the key specifications of this swing drive?

A: The 536-7288 is a multi‑stage planetary reduction swing drive with a maximum swing torque of 137 kN·m (101,168 lbf·ft) and a swing speed of 8.74 r/min. Oil capacity is 18 L (4.8 gal US) per side. The swing circuit operates at a maximum pressure of 28,000 kPa. The drive weight is approximately 510 kg (1,125 lb) per side.

Q4: What is the warranty on this swing drive?

A: Warranty period is 3 to 6 months depending on product details. We do not provide warranty service for genuine original parts. Our value is delivered up front: genuine Caterpillar specification components, new‑condition drive, and pre‑shipment visual verification. For customers who require a warranty‑covered option, we can quote aftermarket alternatives – ask our sales team.

Q5: How long does delivery take?

A: Delivery is 5–8 working days after order confirmation from our Guangzhou warehouse. Express shipping (DHL/FedEx/UPS) is available for urgent orders.

Q6: What payment methods do you accept?

A: We accept T/T, XTransfer, PayPal, and Western Union.

Q7: How can I verify the drive is genuine before shipping?

A: Before packing, we send you clear, high‑resolution photographs of the actual unit – mounting flange, splines, port threads, casting marks, and overall condition. You approve shipment only after reviewing these images. We never ship blind.

Q8: What oil should I use with this swing drive?

A: The swing drive has a separate oil fill with a capacity of 18 L (4.8 gal US) per side. Refer to your CAT 336GC operator’s manual for the correct oil type and viscosity. Do not overfill – excessive oil creates internal pressure that can force oil past the seals.

Still have questions? Contact Hongtengda Parts – we reply within 24 hours.