Overview
| MLIT filing number | 1146160 |
|---|---|
| Type | Statutory Recall (government-mandated recall) |
| Date filed | November 21, 2019 |
| Manufacturer(s) | UD Trucks |
| Component | Exhaust Emissions Reduction System |
| Production period | April 28, 2017 — June 2018 |
| Vehicles affected | 5,351 units |
Defect
On heavy-duty trucks equipped with a urea selective catalytic reduction (urea SCR) system, improper machining of the guide sleeve inside the urea solution pump allows pump operating pressure to initiate a crack at the tip of the sleeve. The sleeve tip may then fracture, impairing urea solution pump function. As a result, a warning lamp illuminates and nitrogen oxide (NOx) emissions may exceed the regulatory limit.
Corrective action
On all vehicles, replace the urea solution pump with a corrected part.
Affected models & chassis ranges
This filing lists 22 type code(s). A vehicle is affected if its chassis number falls within one of the ranges below.
| Type code (型式) | Model | Chassis ranges |
|---|---|---|
| 2DG-CF5AL | QUON | JNCMBN0B7JU032894 — JNCMBN0B5JU033929 |
| 2DG-CZ5BL | QUON | JNCMBP0E4JU032938 — JNCMBP0E6JU034061 |
| 2PG-CD5AL | QUON | JNCMBN0C7HU026287 — JNCMBN0C0JU028811 |
| 2PG-CD5BA | QUON | JNCMBN0C8HU021910 — JNCMB02C7JU034038 |
| 2PG-CD5BL | QUON | JNCMB02C3HU025945 — JNCMB02C7JU033813 |
| 2PG-CD5CA | QUON | JNCMB02C1HU016208 — JNCMB02C0JU034057 |
| 2PG-CD5CE | QUON | JNCMB02C6JU031003 — JNCMB02CXJU034065 |
| 2PG-CD5CL | QUON | JNCMB02C6HU018195 — JNCMBP0C5JU034048 |
| 2PG-CG5BA | QUON | JNCMB02G9HU025953 — JNCMB02G9JU033279 |
| 2PG-CG5BL | QUON | JNCMB02G0JU033297 |
| 2PG-CG5CA | QUON | JNCMB02GXHU017229 — JNCMB02GXJU034070 |
| 2PG-CG5CE | QUON | JNCMB02G1JU031283 — JNCMB02G9JU034030 |
| 2PG-CG5CL | QUON | JNCMB02G5HU022337 — JNCMB02G3JU034055 |
| 2PG-CW5AL | QUON | JNCMB02D5HU017046 — JNCMB02D6JU034069 |
| 2PG-CW5BL | QUON | JNCMB02D1HU022941 — JNCMB02D6JU034010 |
| 2PG-CW5CA | QUON | JNCMB02D7HU022507 — JNCMB02D4JU034040 |
| 2PG-CW5CL | QUON | JNCMBP0D0HU022005 — JNCMB02D8JU033943 |
| 2PG-CX5BA | QUON | JNCMB02D6HU024538 — JNCMB02D8JU033683 |
| 2PG-CX5BL | QUON | JNCMB02D3HU026151 — JNCMB02D4JU033745 |
| 2PG-GK5AAB | QUON | JNCMBP0A3HU022537 — JNCMB22A8JU034060 |
| 2PG-GK5AAD | QUON | JNCMB22A4JU027834 — JNCMB22A6JU033893 |
| 2PG-GK5AAE | QUON | JNCMB22A7JU029657 — JNCMB22A7JU033921 |
Original Japanese (MLIT source text)
Show the original Japanese filing text
状況
大型トラックの尿素選択還元型触媒システム（尿素ＳＣＲシステム）において、尿素水ポンプ内ガイドスリーブの加工が不適切なため、ポンプ作動時の圧力によって当該スリーブ先端部に亀裂が発生することがある。そのため、当該スリーブ先端部が破断し尿素水ポンプの機能が損なわれ、警告灯が点灯するとともに排出ガス中の窒素酸化物（ＮＯｘ）の排出値が基準値を超えるおそれがある。
改善措置
全車両、尿素水ポンプを対策品に交換する。
Source & verification
This entry reproduces public data from Japan's MLIT recall registry. English text is jdmvin.com's own translation; always verify against the official source:
https://renrakuda.mlit.go.jp/renrakuda/ris-detail-car.html?class=recalldatacar&id=3004637
Related
All UD Trucks recalls · All 2019 recalls · Recall Archive home