Three Parts That Decide Whether a FK40 Can Be Rebuilt — Shut-off Valve, Piston and Rod, Crankshaft

1. Rebuild or Replace Hangs on Three Parts

Whether a FK40 goes back into service or goes to scrap is usually decided by what is found inside the crankcase. The housing, the drive end and the clutch are often still serviceable — which means the economics of a rebuild turn on a small number of internal components.

We carry three of them for the GEA BOCK FK40 platform: the 08082 shut-off valve, the FK40 560 / 655 piston and connecting rod, and the FK40 655K crankshaft.

2. The Shut-off Valve — 08082

08082 is the FK40 compressor shut-off valve, listed for the GEA BOCK FK40. It is the smallest and lightest part on this page — 0.5 kg as the attribute records it, in a 30 × 20 × 20 cm package.

It is recorded as a WEILI part for bus application. Because the reference and the cross-reference field both read 08082, there is a single number to match on this one.

3. The Piston and Connecting Rod — FK40 560 / 655

The piston and connecting rod assembly is recorded as FK40560 in the reference field, with the cross-reference reading FK40, FK560, FK655 — which is how the listing ties the part to both the 560 and the 655 displacement steps of the platform.

The material is recorded simply as metal, and the recorded application is bus compressor. At 1.5 kg and in a 10 × 10 × 8 cm package, this is a hand-held component.

4. The Crankshaft — FK40 655K

The FK40 655K crankshaft is recorded with the reference fk40655k and a cross-reference field reading *bus air compressor crankshaft*. It is the heaviest part of the three at 7.0 kg, packed in a 30 × 35 × 30 cm carton.

It is recorded as a WEILI part for bus application. Because a crankshaft is a rebuild-stage component, this is a part to quote against the platform and the displacement step rather than against a measurement.

5. Packing and Weight at a Glance

The three parts differ by more than an order of magnitude in weight, which matters when you are consolidating a rebuild order into one shipment.

08082 shut-off valve for the GEA BOCK FK40 platform.

FK40 560 / 655 piston and connecting rod, reference FK40560.

FK40 655K crankshaft, reference fk40655k.

6. Enquiry Checklist

• Quote the reference — 08082, FK40560 or fk40655k.
• State the displacement step of your unit: 470K, 560K or 655K. The piston and rod assembly is tied to 560 and 655; the crankshaft reference is the 655K.
• Say what stage the job is at — a valve replacement, a piston and rod replacement, or a full rebuild. It changes what else you may need.
• Ask us for the other FK40 parts in the same rebuild: we also carry the 80023 shaft seal and kit and the refurbished FK40 compressor itself.

Q1. Which FK40 displacement does the crankshaft fit?

The reference is fk40655k — the 655K step of the GEA BOCK FK40 platform. Quote the displacement of your unit when ordering.

Q2. Does the piston and rod fit both 560 and 655?

The cross-reference field reads FK40, FK560, FK655, so the listing ties the assembly to both displacement steps. Confirm your step when ordering.

Q3. Is the 08082 valve the same on all FK40 variants?

It is listed for the GEA BOCK FK40 platform with the reference 08082 in both the OE number and cross-reference fields. Confirm the platform on your unit before ordering.

Q4. Do you supply the whole rebuild as a set?

We supply the individual references above, plus the 80023 shaft seal and kit and the refurbished FK40 compressor if the core turns out not to be serviceable. Tell us what the rebuild needs and we will assemble the list.

Q5. What warranty applies?

1 year on all three parts.

7. How the Quality System Is Certified

Auditors and buyers who want the shortest possible answer to *is this factory actually certified* can work down this list:

1. Certified to IATF 16949 — the automotive quality management system, covering design and production of bus and truck air-conditioning components.

2. Full-process control to ISO 9001 requirements — incoming inspection, in-process control and finished-product testing are all documented stages, not spot checks.

3. TÜV Rheinland on-site audit passed — an independent third party has been through the plant.

4. Component testing on in-house instruments — dynamic balance, electrical performance, high and low temperature, and endurance life testing; 100% incoming inspection on materials.

5. Third-party pre-shipment inspection supported — SGS, BV or TÜV, to the standard you nominate.

6. Destination-market compliance declarations — CE and RoHS for fan and motor products; FCC accommodated for North America.

We would rather you verify the system than accept a claim about it — ask for the test data for your part number, or come and audit the line.

8. Approvals and Test Reports on Record

The approvals fall into two levels, and it matters which is which when a certificate has to go into a quality or tendering file.

Held at company and plant level

Held for the brushless fan range

Each certificate names its own covered models. The brushless fan approvals list the models they cover on the certificate itself — ask for the PDF for the reference you are buying and check it against that list. The IATF 16949 registration names the scope “design and manufacture of air blowers for air conditioners”.

IATF 16949:2016 registration certificate 126765/A/0001/SM/En — valid to 05 June 2026.

ECE type approval E57*COP*1682, Republic of San Marino — valid to 14/05/2026.

CE / EMC certificate TBC-C-202308-0315-1 — test report TBR-C-202308-0315-1.

RoHS declaration TBC-C-202308-0315-2 — test report TBR-C-202308-0315-2.

Low Voltage / EMC certificate M.2024.206.C110335 — valid to 25.11.2029.

9. Factory Profile and Production Capability

Profile in one paragraph. Founded 2007. Based in the Xiangtan Economic and Technological Development Zone, Hunan Province, China. More than 15 years in bus and truck air-conditioning parts. 80+ employees. Plant area 5,000 – 10,000 m². Annual sales of over 90 million yuan. Annual output of more than 800,000 units. Exports to more than 50 countries. Alibaba.com Gold Supplier for more than 12 years, store rating 4.7 / 5, on-time delivery rate 91.2%.

Sourcing from one plant instead of several is the practical advantage here: blowers, fans, motors, pumps and radiators can be combined in a single order and a single shipment, which cuts freight cost and removes the risk of parts that do not match each other.

10. Plant and Production Line in Photographs

Confidence stems from quality, and quality changes the world — which is why the line that makes this part is open to your inspection.

The plant in the Xiangtan Economic and Technological Development Zone, Hunan Province, China.

Assembly line — blower and fan assemblies built and inspected at the bench.

In-house motor winding — stators wound on an automatic winding machine.

Production line — components staged at the stations along the line.

Finished-goods warehouse — export cartons staged for dispatch.

Brand wall and the on-site certificate and reference display at the plant.

A visit is the fastest way to settle a sourcing decision. The address and line access are open to buyers who want to verify capacity, equipment and quality control before committing to a programme. Pre-shipment inspection by SGS, BV or TÜV to a standard you nominate is part of the process, not an exception.

The parts on this page are wound, moulded, stamped, assembled and tested inside the plant shown above, so a technical question reaches the people who build it rather than passing through a trading desk.

11. How Small an Order, How Long to Ship

Minimum order quantity (MOQ) and production time are the two figures that decide how much working capital one shelf position costs. Both are set by the type of item, so read across the row that matches what you are buying.

Trial orders are the normal route. Test the quality on a small quantity first, then scale once it is proven in your market. Order quantity, production time and shipping method are confirmed together with the quotation.

As published on the official listing for each reference above. Production time is the period stated to produce the goods before dispatch; the exact figure for your quantity is confirmed on the quotation.

12. OE Cross-Reference and Market Coverage

Buyers in the aftermarket rarely arrive with a clean part number. Either the plate has corroded, or the number on the shelf is a brand reference rather than an OE reference. Both routes are covered here.

Replacement coverage includes SPAL, Valeo, Thermo King, Webasto, Scania, Yutong, DAF, Mercedes, Volvo and Hwasung Thermo references. Where a match cannot be confirmed, we say so and propose sending a sample for verification rather than shipping on a guess.

Applications span passenger cars, buses and coaches, heavy trucks and semi-trailers, and large vehicles such as construction machinery, forklifts and mining trucks. Main export markets are the Middle East, South America, South East Asia and Eastern Europe, with Mexico, the UAE and the Philippines as the three largest.

13. Custom Work: Scope, Steps and Timeline

Customisation is worth doing when a standard reference is close but not exact — a different mounting face, a harness length that does not reach, or your own brand on the box. The scope is deliberately wide, and the timeline is short enough to test before committing.

• Private label (ODM). Your brand on an existing line: silk-screen, label, packaging box, instruction sheet, warranty card. Protects your brand position and needs no tooling.
• Sample-based. Your part is stripped, measured and analysed, then reproduced to performance — and made more durable where the design allows.
• To drawing. Dimensions, electrical parameters and mounting method built to your specification.
• Concept-to-production. Design development for parts that have no reference, with cost-backwards optimisation inside the quality limits.

Timeline. Standard sample-based work produces a sample in approximately 30 days; a brand-new tool may take longer depending on mould complexity. Once the sample is approved, mass stocking takes 40 – 60 days, subject to process and quantity. Plan the tooling question early — it is the single largest variable in the schedule.

Small-batch trial first. Test a low-quantity order against a standard reference, confirm quality and cooperation, then move to your own reference and volume. It is the cheapest way to de-risk a first programme.

14. Procurement FAQ

Q1. How do I identify the right reference?

Give us the OE number if you have it — that is the most reliable route. Otherwise a brand and model reference, or photographs plus measurements of the old part. If nothing can be confirmed, we will tell you and propose sample verification instead of shipping on a guess.

Q2. What quantity should I start with?

Standard items start from 1 – 2 pieces, batch items from around 6 – 50 pieces. Most buyers take a small trial order, verify the quality in their own market, then scale — and the quantity, production time and shipping method are confirmed in writing with the quotation.

Q3. What is the warranty?

1 year across the range.

Q4. How long does production take?

Production time is published per reference on the official listing and reproduced on the ordering section of this page. For custom work, a standard sample-based project produces a sample in approximately 30 days, with 40 – 60 days stocking after approval.

Q5. Does it come export-packed?

Yes — inner box, outer carton and shock cushioning are included in the quotation, designed to sea-freight standards, with drop and compression sampling before dispatch. Colour boxes, wooden cases and palletisation are available on request.

Q6. Can I combine models in one shipment?

Yes. Several models can be mixed into one container with cartons marked by destination, which uses the container better and lowers the freight cost per unit.

Q7. Who inspects before shipment?

You can. SGS, BV or TÜV can inspect to a nominated standard such as AQL, and the shipment is released after the inspection is passed.

Build Your FK40 Rebuild List

Hunan Weili Auto Parts Appliance Co., Ltd. — founded in 2007, ISO 9001 & IATF 16949 certified manufacturer of bus & truck AC parts, electric fans, blowers, lighting and alternator components.

Tell us the displacement step and what the rebuild has uncovered — valve, piston and rod, or crankshaft — and we will confirm the references and the rest of the list within 24 hours.

WhatsApp / WeChat: +86-18670382782 | Landline: +86-0731-82034997 / 82034998

E-Mail: [email protected] | Websites: www.cooliparts.com | www.weilipart.com | www.weiliautomotive.com

Send us your OEM part number, vehicle model or drawing — we will reply within 24 hours with a quotation and technical data sheet.