NHTSA ID Number: 10203889
Manufacturer Communication Number: 05-71-19R
Summary
This bulletin provides an inspection procedure to follow when addressing customer concerns of a rattling, knocking or klunk type sound when going over slight bumps and / or uneven road surfaces.
NUMBER: 05-71-19R
DATE: 10/25/19
REVISED: 11/05/21
INTRODUCTION:
This bulletin provides an inspection procedure to follow when addressing customer concerns of a rattling, knocking or klunk type sound when going over slight bumps and / or uneven road surfaces.
PRODUCTION CHANGE INFORMATION:
New front coil springs were incorporated into production starting with VIN L3406693.
PART INFORMATION:
There has been no change to the current front coil spring part number.
REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being repaired.
The handy reference table below lists all the parts, quantities needed and torque specifications for this repair (per side) as most of the hardware required consists of one-time use items.
| Description | Qty. Req’d. Per Side | Location: | Torque Spec: | Part Number |
| COIL SPRING F | 1 | n/a | 20330XC00A* | |
| 20330XC01A** | ||||
| SELF-LOCKING NUTS: ALL ARE 1-TIME USE | 2 | Strut to Knuckle | 155 Nm (114.3 Ft. Lbs.) | 902330007 |
| 1 | Stab. Link to Strut | 60 Nm (44.3 Ft. lbs.) | 902370063
Subaru Genuine 902370063 Nut Flange, 1 Pack
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | |
| 1 | Strut Mt. to Strut | 55 Nm (40.6 Ft. lbs.) | 902350027
Genuine Subaru 902350027 Self Lock Nut, 1 Pack
Last update on 2026-06-09 / Affiliate links / Images from Amazon Product Advertising API | |
| 3 | Strut Mt. to Body | 32 Nm (23.6 Ft. lbs.) | 902350029 | |
* Models without moonroof
** Models with moonroof
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
After verifying the customer concern, inspect the front coil springs closely for any contact (witness) marks as shown in the example photos supplied below. If any contact marks are confirmed, replace the affected coil spring closely following the procedure in the applicable Service Manual. The current procedures for coil spring replacement are unchanged.
The Service Manual procedures contain information critical to performing an effective repair the first time and every time. This includes but is not limited to: important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time use parts needed for a complete and lasting repair.
2 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
SUBARU | ASCENT | 2019-2020 |
1 Associated Document
Manufacturer Communications
NUMBER: 05-71-19R
DATE: 10/25/19
REVISED: 11/05/21
MC-10203889-0001.pdf 1215.76KB
NHTSA ID Number: 10171078
Manufacturer Communication Number: 05-71-19R
Summary
This bulletin provides an inspection procedure to follow when addressing customer concerns of a rattling, knocking or klunk type sound when going over slight bumps and/or uneven road surfaces.
1 Associated Document
Manufacturer Communications
NUMBER: 05-71-19R
DATE: 10/25/19
REVISED: 01/08/20
MC-10171078-0001.pdf 1207.447KB
NHTSA ID Number: 10166952
Manufacturer Communication Number: 05-71-19
Summary
This bulletin provides an inspection procedure to follow when addressing customer concerns of a rattling, knocking of klunk type sound when going over slight bumps and/ or uneven road surfaces.
1 Associated Document
Manufacturer Communications
NUMBER: 05-71-19
DATE: 10/25/19
MC-10166952-0001.pdf 1182.603KB
- Works on Most Vehicles: This heavy-duty spring compressor tool set by Orion Motor Tech repairs bent and damaged parts and performs the necessary suspension maintenance on the MacPherson struts and springs found in most small and medium-sized cars
- Secure Compression: Acme-threaded rods ensure a firm grip on springs, while built-in detent pins securely lock them in place, providing reliable, non-slip compression for safe and precise work
- Wide Compatibility: Working with your manual or power tool's 1/2-inch square drive or 13/16-inch hex sockets, our Acme rods and end pieces offer a 10.5" range, wider than the competition to work with more vehicles
- Built to Last: Our pair of heavy-duty strut spring compressors boasts high durability and corrosion resistance under even punishing use thanks to their heat-treated steel construction, black oxide finish along the threaded rods, and zinc-coated heads
- Compact & Portable: This hock spring compressor tool set comes with a blow-molded case, keeping parts organized and easy to carry, store, and access, so you're always prepared for your next repair job
- SPECIALTY TOOL: Coil Spring Compressor removes and installs straight or curved springs made of wire up to 3/4 inch diameter
- SAFE: Designed for the safe and efficient removal and installation of most automotive coil spring suspensions
- TOUGH: Made to last with Chrome Vanadium Steel arms, precision built to meet or exceed ANSI standards for a lifetime of use
- COMES IN: Heavy duty blow molded case to keep kit protected and organized
- EASY TO READ: Includes detailed instruction with usage photos
- Double-Retention Anti-Drop System: This strut spring compressor kit features dual-protection safety with interlocking hook jaws and a secure locking mechanism. Its adjustable safeguard brace prevents accidental spring release under load and ensures parallel operation of removable tool components at all times
- Premium Material: Our coil spring compressor tool is constructed from 45# carbon steel. The rugged frame minimizes flexing, bending, and warping even under high tension, each pair of the spring compressor tool can withstand a load of up to 2645 lbs (1200 kg)
- Wide Application: An ideal solution for various vehicles, including trucks under 3 tons and large sedans. Avoid strut compressors with flimsy hooks that cause slippage or safety hazards. Compatible with springs 0–0.8 inches (0–20mm) in diameter. Verify spring size before use
- Product Information: This heavy-duty spring compressor tool has a wide jaw capacity of 2.7-10.6 inches (70-270 mm) and an adjustable holder suitable for coil diameters of 8.6-12.2 inches (220-310 mm). Fits straight springs only; tapered springs not compatible
- Easy to Use: The screw compressor securely grips springs by rotating the easy-to-use hex nut. Use a 19mm hex socket or wrench. Always apply grease to threads before use. (Ensure even pressure on both sides — uneven force may cause tool detachment.)
- For Most Vehicles: Align the hooks with the safety pins backed off, position both set of hooks, opposite each other, tighten the threaded rod with even pressure on both sides, then remove the fastener nut holding the cartridge. This heavy duty coil spring compressor repairs bent and damaged parts and performs the necessary suspension maintenance on the macPherson struts and springs found in most small and medium-sized cars
- Heavy-Duty: This heavy duty strut spring compressors is made of strong carbon steel, and black anodic oxidation coating to prevent rust and corrosion, high durability and corrosion resistance under even punishing use, constructed with forged hooks and center screw hardened for maximum strength and longevity, designed to withstand extreme pressure in any environment, ideal for professional mechanic and automotive repair
- Safe & Stable Grip: The wide end pieces lock on to your coil springs quickly and easily and keep a secure hold as you work, with locking pins offering additional security and precision, hex-shaped end for a 7/8-inch wrench or socket and allows a 1/2-inch extension for adjustment if the strut is too close to the tool, 11.5-inches threaded rods for 10-inches to 10.5-inches maximum opening to fit jaws to coils
- Contents: 2pcs 10.5 inch range coil strut spring compressor with safety locking pins, 1 pc. high quality storage case
- Storage Case: The strut spring compressors is packed in a heavy-duty storage case with precision-sized compartments for every piece - great for storage and transport while lengthening the life of the tool set.
- 4.5 Ton Hydraulic Load Capacity: The hydraulic jack has a 4.5 ton load capacity, and the rated compression force is 1 ton. Our coil spring compressor is great for various vehicle types, including sedans, SUVs, off-road vehicles, and pickup trucks. Perfectly suited for spring disassembly and shock absorber maintenance.
- Versatile Clamping Options: Our spring compressor comes with two clasps for the utmost versatility. The small spring clasp accommodates sizes from 4.3" to 5.1", while the big spring clasp caters to 5.5" to 6.7" sizes. With a maximum compression stroke of 12.6"/320 mm and featuring 8 positioning holes on the column, you can easily adjust the clasp position to match different spring heights.
- Stable Suspension: Prioritizing safety and convenience, our coil spring compressor features a stable suspension system that prevents bouncing due to spring tension. It halts at the current position and only descends slowly when you engage the pressure release valve.
- Safety Assurance: The strut spring compressor provides multiple-layered protection: a 39.4" extended safety chain to secure the springs, an additional stable locking mechanism, and a safety tongue on the clasp to prevent spring detachment accidents. The H-shaped stable base ensures minimal wobbling during operation. For added security, two pre-drilled holes allow you to anchor the compressor to the ground.
- Premium Material Construction: The hydraulic jack boasts a leak-proof hydraulic pump and a dampened hydraulic rod for seamless lifting and lowering. The Q235 reinforced steel column and the ductile cast iron clasps provide unparalleled durability to withstand extreme pressures, ensuring heavy-duty springs without risk of breakage or bending.
Last update on 2026-06-19 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
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Bulletin Number: 05-71-19R; Revised: 11/05/21 Page 1 of 3 Continued… NUMBER: 05-71-19R DATE: 10/25/19 REVISED: 11/05/21 APPLICABILITY: 2019-20MY Ascent SUBJECT: Front Coil Spring Inspection Procedure for Knock / Rattle Sound CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru Service Bulletins are intended for use by professional technicians ONLY. They are written to inform those technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. Subaru of America, Inc. is ISO 14001 Compliant ISO 14001 is the international standard for excellence in Environmental Management Systems. Please recycle or dispose of automotive products in a manner that is friendly to our environment and in accordance with all local, state and federal laws and regulations. INTRODUCTION: This bulletin provides an inspection procedure to follow when addressing customer concerns of a rattling, knocking or klunk type sound when going over slight bumps and / or uneven road surfaces. PRODUCTION CHANGE INFORMATION: New front coil springs were incorporated into production starting with VIN L3406693. PART INFORMATION: There has been no change to the current front coil spring part number. REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being repaired. The handy reference table below lists all the parts, quantities needed and torque specifications for this repair (per side) as most of the hardware required consists of one-time use items. Description Part Number Qty. Req’d. Per Side Location: Torque Spec: COIL SPRING F 20330XC00A* 1 n/a 20330XC01A** SELF-LOCKING NUTS: ALL ARE 1-TIME USE 902330007 2 Strut to Knuckle 155 Nm (114.3 Ft. Lbs.) 902370063 1 Stab. Link to Strut 60 Nm (44.3 Ft. lbs.) 902350027 1 Strut Mt. to Strut 55 Nm (40.6 Ft. lbs.) 902350029 3 Strut Mt. to Body 32 Nm (23.6 Ft. lbs.) * Models without moonroof ** Models with moonroof SERVICE BULLETIN ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. ©2019 Subaru of America, Inc. All rights reserved. Bulletin Number: 05-71-19R; Revised: 11/05/21 Page 2 of 3 Continued… SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. After verifying the customer concern, inspect the front coil springs closely for any contact (witness) marks as shown in the example photos supplied below. If any contact marks are confirmed, replace the affected coil spring closely following the procedure in the applicable Service Manual. The current procedures for coil spring replacement are unchanged. The Service Manual procedures contain information critical to performing an effective repair the first time and every time. This includes but is not limited to: important SAFETY precautions, proper inspection criteria, necessary special tools, required processes and related one-time use parts needed for a complete and lasting repair. WARRANTY / CLAIM INFORMATION: For vehicles within the Basic New Car Limited Warranty period or covered by an active Subaru Added Security Classic or Gold plan, this repair may be submitted using the following claim information: Labor Description Labor Operation # Labor Time Fail Code ONE FRONT STRUT OVERHAUL B611-201 0.7 NAD-25 FOUR WHEEL ALIGNMENT* C611-038 1.4 BOTH FRONT STRUTS OVERHAUL B611-204 1.1 FOUR WHEEL ALIGNMENT* C611-038 1.4 * 0.3 Can be claimed when subletting the Alignment, Use C101-108, SUBLET REPAIR, ADMINTRATION EXPENSES Bulletin Number: 05-71-19R; Revised: 11/05/21 Page 3 of 3 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs.
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