Honda Civic front lower ball joint 51220-TR0-A01

Description

This TSBJ front lower ball joint is a direct replacement for the Honda Civic 9th generation front suspension, built to OE number 51220-TR0-A01. The lower ball joint is the pivot between the lower control arm and the steering knuckle. It carries vertical load and allows the knuckle to steer, so once its socket wears the front wheel gains free play in two directions: the car wanders under braking, the steering feels loose, and a knock appears over expansion joints and speed bumps.

We produce the Honda Civic front lower ball joint as an OEM manufacturer. The housing is formed to the original dimensions, the ball stud is machined to the OE taper so it seats correctly in the knuckle, and the socket is filled with grease and closed with a new dust boot before packing. Because the taper and mounting bolt holes match the original, the joint presses into the lower control arm and torques to the factory knuckle without modification.

A worn lower ball joint is a safety item, not just a comfort item: once the stud develops enough play it can separate under load. That is why workshops replace it as soon as vertical or horizontal movement is found during a suspension check, and why distributors keep the reference in stock as a fast-moving service part.

Zhejiang Tongshi Industrial Technology Co., Ltd. has manufactured chassis and steering parts since 1985 under an IATF 16949:2016 quality system at its 12,000 square metre plant in Yuhuan, Zhejiang. The 51220-TR0-A01 ball joint ships at factory-direct wholesale pricing with a 12-month warranty, in neutral packaging or under your own brand for OEM and ODM orders.

Key Features

1. OE 51220-TR0-A01 direct replacement: housing dimensions and stud taper matched to the original, so it seats in the knuckle without modification.
2. Safety-critical wear item: eliminates the free play that can lead to ball stud separation under load.
3. Pre-greased and sealed: grease packed during assembly and retained by a new dust boot, keeping water and grit out of the socket.
4. OE-matched taper: correct stud seating keeps the knuckle angle and therefore the alignment within spec.
5. Press-fit housing: sized for a correct interference fit in the lower control arm, so it does not spin or work loose.
6. IATF 16949:2016 production with in-house inspection and batch traceability.
7. 12-month warranty: standard cover for aftermarket distribution.
8. Factory-direct wholesale pricing with OEM / ODM and private label support.

Specifications

Materials & Finish

Housing: cold-formed steel body machined to the original ball joint dimensions.
Ball stud: machined to the OE taper and thread specification for correct seating in the knuckle.
Socket: greased during assembly and closed with a new dust boot to retain lubricant and exclude water and grit.
Finish: corrosion-resistant coating on the housing and stud.
Assembly: supplied pre-greased and sealed, ready to press into the lower control arm.

Applications

Honda Civic 9th gen front suspension repair: replaces a lower ball joint with vertical or horizontal play.
Safety inspection replacement: the joint is renewed as soon as movement is found, before the stud can separate under load.
Knock and wander diagnosis: the part to check when the front end knocks over expansion joints and the car wanders under braking.
Pre-alignment front-end overhaul: fitted together with control arms and tie rod ends before a four-wheel alignment.
Roadworthiness testing: a common fail item on older Civics, so workshops keep it on the shelf.
Wholesale service range: a fast-moving stock item for distributors serving Honda repair shops.

FAQ

Q: Which Honda models does 51220-TR0-A01 fit?
A: It is built for the front lower position on the Honda Civic 9th generation (2012-2016). Honda used several ball joints across the Civic range, so confirm your VIN or the number on the existing part before ordering.

Q: Is this a left or right part?
A: The front lower ball joint is not handed on this application: the same reference is used on both sides of the front axle.

Q: How can I tell if the ball joint is worn?
A: With the front wheel raised, a good joint shows no vertical or horizontal movement when the wheel is rocked by hand. Play, a torn dust boot or a knock over bumps all indicate replacement.

Q: Does the ball joint come with grease and a boot?
A: Yes. It is supplied pre-greased with a new dust boot fitted, so no additional packing is required before installation.

Q: What is the MOQ and lead time?
A: MOQ from 1 pcs. Stock items ship in 5-7 days; production orders take 25-40 days, FOB Ningbo or Shanghai.

Packing & Logistics

Neutral packaging as standard, suitable for wholesale resale.
Stock items dispatched in 5-7 days; production orders 25-40 days.
Loading from Ningbo / Shanghai.
Payment by T/T or L/C.

Service

12-month warranty on every ball joint.
Sample orders from 1 pcs.
OEM / ODM and private label packaging supported.
Over 3,000 chassis and steering models, so ball joints, control arms and tie rod ends can ship together.