Brake Wheel Cylinder 22.22mm for Citroën C15 & Renault Espace, 18, Fuego – XUI2829A

Technical Specifications

OE Cross Reference

Supplementary Note
17689400 and 0017689400 are the same reference written in two formats — with and without a leading zero. Both appear in different catalog systems for the same application. When searching warehouse databases, either format may return results depending on the system used.

One Cylinder, Five Classic French Vehicles
XUI2829A covers a wide range of PSA and Renault vehicles from the late 1970s through the mid-2000s. The common thread across all five applications is the same rear drum brake setup — 22.22mm bore, M6×1 mounting bolts, and standard metric brake line fittings. A single stocking unit handles the Citroën C15 van, the original Renault Espace MPV, the Renault 18 saloon, the Fuego coupé, and the Renault Rapid light van.
For parts distributors, that breadth of coverage under one SKU is a practical advantage. Buyers sourcing for any of these vehicles arrive at the same part number, which simplifies catalog management and reduces the number of separate lines needed to cover a significant slice of the French classic car aftermarket.

Why These Vehicles Still Generate Parts Demand
Each model in the application list has its own reason for still showing up in workshops:
The Citroën C15 ran from 1984 to 2006 — one of the longest production runs of any European light commercial vehicle. It was a workhorse van used heavily by small businesses and tradespeople across France, Spain, Portugal, and North Africa. C15s are still in active daily use in those markets. Technicians servicing them need brake parts that are no longer stocked by mainstream distributors.
The Renault Espace I (1984–1997) was Europe's first mainstream MPV. First-generation Espace vehicles have a following among classic car enthusiasts in France and the Benelux region, and the parts market for them is thin but real.
The Renault 18 (1978–1994) was one of Renault's best-selling family saloons of its era. Large numbers were exported to North Africa and the Middle East, where they remained in service well into the 2000s. Workshop demand in those export markets continues.
The Renault Fuego (1980–1992) was a front-wheel-drive sports coupé — one of the more recognizable French cars of its generation. Fuego restorations are a niche but consistent segment of the classic car parts market in Western Europe.
The Renault Rapid Box (1985–2001) was a light delivery van widely used by small businesses. Like the C15, surviving vehicles are concentrated in Southern Europe and North Africa, where older commercial vans stay in service longer.

Q1: Does XUI2829A have a left and right version?
No. This cylinder has no left/right designation — it is a universal fitment for the rear axle on all listed applications. One part number covers both sides.

Q2: Why do two OE numbers (17689400 and 0017689400) look almost identical?
They are the same number. Some catalog systems drop the leading zero, others include it. Both formats refer to the same OE reference and the same cylinder. If a database search with one format returns no results, try the other.

Q3: Does this fit the Citroën C15 across its full production run (1984–2006)?
Yes — the C15 maintained the same rear drum brake specification throughout its production life. XUI2829A covers the complete 1984–2006 range.

Q4: What bore diameter does XUI2829A use?
22.22mm. This is the OE specification across all five applications. Bore diameter affects the hydraulic pressure output of the cylinder — fitting the wrong size alters the brake balance between front and rear axles.

Q5: Is the mounting size on XUI2829A the same as other 22.22mm Renault wheel cylinders?
No. XUI2829A uses a Φ35.5/36 mounting pattern, which differs from other Renault and Citroën applications that share the same bore diameter. Always confirm the full part number and mounting size before ordering.