BYD Brake Caliper Motors and Adjuster Rods — Six Lines, One Mechanism

Open the brakes category expecting pads, discs, hoses and a wear sensor, and you get something much narrower: six lines, and every one of them is either a caliper motor or a caliper adjuster rod. That is not a gap that needs filling so much as a signal. The parts indexed here belong to the electric parking brake mechanism mounted on the caliper, which is the single most application-specific brake component on a modern car and the one most often ordered wrongly. A substitute-based approach that works for friction parts does not survive contact with it. Below we set out what the six lines are, how the two families relate, which purchasing level to choose, and why the phrase "the caliper is faulty" is not a purchase order.

1. What the six lines are

The whole brakes category is those six lines. No friction material, no discs, no hydraulic hoses and no wear indicators are listed under it, so a buyer who searches brakes and stops at the first screen will conclude that friction parts are missing from the range rather than filed elsewhere. If what you need is not one of the six numbers, send us the part number or a photo of the label, and we will check whether we can source it.

2. What each family does, said once and kept general

A caliper motor is the actuator mounted on the caliper that drives the parking brake. Instead of a cable from the cabin, the motor converts electrical input into the clamping force that holds the car. Nothing more specific than that belongs on a purchasing page, and no electrical detail appears here.

An adjuster rod is the mechanical element between that actuator and the piston: it carries the motor's rotation into the piston and maintains the running clearance as friction material wears.

Two practical observations follow from the descriptions alone, and they are the ones that shape an order. Because both families are listed as separate lines, buying a motor does not imply that anything internal to the caliper comes with it. And because the index carries no fitment — no model, no year, no side — nothing in these six lines tells you which corner of which vehicle it serves. Application is confirmed per enquiry against the OE number and the VIN.

3. Choosing the purchasing level

The choice is rarely about which part is better. It is about how much of the identification risk you want to carry, and how much the job can tolerate.

That third row deserves a sentence of caution. A complete caliper is not among the six lines above, which means it is quoted as its own question rather than as something derived from a motor number. Give us the VIN and we will work from that, rather than assuming a motor number implies an assembly.

4. Why "the caliper is broken" usually produces the wrong order

Five failure modes meet at the same sentence, and they resolve to five different order lines.

Level one: symptom versus component. A complaint of a noisy, dragging or non-releasing parking brake is reported at the caliper. The replaced items are usually narrower — the motor, or the adjuster rod, or neither. Ordering "a rear caliper" against that sentence gets you whichever of the three the supplier interprets, which is not a safe way to buy a part with two motor numbers and four rod numbers behind it.

Level two: motor versus rod. They are separate families with separate numbers. A motor that does not run and a rod that does not transmit are different parts, and 13940874-00 is not a kit that includes 13940886-00. Each is its own line.

Level three: the numbers inside each family. Two motor numbers, 13940874-00 and 16158591-00, sit far apart numerically, and four rod numbers — 13940886-00, 14021950-00, 16180482-00 and 16182256-00 — do the same job in English and nothing in the data says they are interchangeable. Assume they are not.

Level four: side. A caliper-mounted mechanism is necessarily handed, and the index does not print left or right. Read it off the removed part or off the label.

Level five: the friction parts alongside. Wear, noise and pulsation complaints often sit with pads and discs, which are not in this category at all. Confirm what the diagnosis actually points to before the number is chosen.

5. Reading the numbers — carefully

There is one tempting pattern in these six lines and one trap, and they are the same adjacency. 13940874-00 and 13940886-00 share a numeric block, twelve digits apart, and one is a motor while the other is a rod. It is natural to read them as belonging to the same caliper generation. The index does not say whether they do, so we neither assert nor deny it: we check it per number against the VIN. What the pair does demonstrate is that proximity tells you nothing usable about interchangeability, and that two parts which may well be fitted to the same assembly are still two purchase lines.

Likewise, 16158591-00 with 16180482-00 and 16182256-00 shares the 16xxxxxx block with nothing to infer from it beyond what the VIN will tell you. In our own index every BYD line uses eight digits plus a -00 suffix, and the suffix is part of the identifier rather than decoration — quote the whole string.

6. Enquiry content and commercial terms

Send the VIN first, then the number off the label on the motor or the rod — the casting or sticker, not a number read from a screen — then the side and axle, then a photograph of the label and of the caliper in position. If you also need pads, discs, fitting hardware or a complete assembly, list them in the same message so that everything can be confirmed in one pass rather than three.

We confirm, part number by part number, whether we can supply it. Remanufactured units can be quoted on request by part number; availability is confirmed order by order. Minimum order value is €50 per shipment; guide prices are shown on the parts pages, and trade and volume pricing on request. Typical dispatch time is confirmed on the quotation; transit depends on the shipping method you choose. Procedures relating to parking brake adjustment, calibration or service mode are deliberately out of scope here, and such work belongs with technicians qualified for it. Start from the brakes category, from the BYD-compatible parts — OE reference index, or use the enquiry page.

Short answers

Are these six lines friction parts? No. Both families belong to the caliper-mounted parking brake mechanism — two motors and four adjuster rods. Pads and discs are not listed in this category.

Can I order a motor and get the rod with it? Treat them as separate lines. Brake Caliper Motor and Adjuster Rod, Brake Caliper are distinct entries in the index, and nothing indicates one includes the other.

Does one rod fit all BYD calipers? We do not assume so. Four rod numbers carry the same English description, and no fitment column exists in the index to collapse them. Give us the number and the VIN.

The number I have is not listed. Now what? Send us the part number or a photo of the label, and we will check whether we can source it — including for a complete caliper assembly quoted against the VIN.

Where this comes from.

The references quoted above are taken from GNSGO's own parts index for BYD vehicles — the same list at BYD-compatible parts — OE reference index. Application is confirmed per enquiry against the OE number and the VIN; the published index does not carry model-year fitment, so we do not infer it here. Model names follow the export designations listed on this page. We have not drawn on BYD's copyrighted workshop documentation, and we do not reproduce any manual or wiring-diagram pages.

This page is general information only. It is not a repair instruction, not a diagnosis of a particular vehicle, and not a substitute for professional advice. Restraint-system and high-voltage parts are outside the scope of this page. Work on high-voltage systems, restraint systems and structural repairs belongs with technicians qualified for it. Confirm the application against the VIN before ordering. Have any work carried out by a suitably qualified workshop.