NHTSA ID Number: 10162810
Manufacturer Communication Number: L977 Rev H
TSB/Document Date: 2019-07-15
Summary
Operation Name: Hendrickson
Trailer Commercial Vehicle Systems Document Name: Identification Guide - Trailer Suspension and Axle Systems Summary: This document provides guidelines on locating and identifying model, serial number and other information for particular Hendrickson trailer suspension and axle systems.
HT™ SERIES DESCRIPTION MATRIX
Suspension Type
HT - HT™ SERIES Suspension
Capacity
190 - 19,000 lbs.
230 - 23,000 lbs.
250 - 25,000 lbs.
300 - 30,000 lbs.
Beam Profile
T - Top-Mount
U - Underslung
Y - Y-Beam
Frame Bracket Pivot & Expanded
Beam Description
A - QUIK-ALIGN® Winged
B - QUIK-ALIGN Wingless;
TB - Top Mount QUIK-ALIGN Wingless
YB - QUIK-ALIGN; Old Y-Beam Design
C - QUIK-ALIGN Wingless Bolt-on
S - QUIK-ALIGN; Standard / New Y-Beam
Design
(Blank) - Weld Align
Y - Welded Alignment Y-Beam
Underslung Model Suffixes
-001 - Standard Primary Suspension
(HT190U and HT250U only) or Weld-on
(HT300U only)
-002 - Limited Travel
-003 - Sliders — Separate SFK
-004 - Sliders — Pre-assembled
-005 - Drop Deck Applications
-006 - Enhanced Operation (Lower PSI)
-007 - Bolt-on Hangers
-008 - Primary (001) unitized with
Threaded Bolt
-020 or Greater — Custom Designs
L977 Rev H
Suspension TypeTop-Model Suffixes
-001 - Weld-on (Steel) or Sliders —
Separate SFK (HT190T only)
-002 - Bolt-on (Aluminum) or Sliders —
Pre-assembled (HT190T only)
-003 - Liftable Weld-on (HT230 ride heights
15" & 17" and HT300 only) or Sliders —
Separate SFK (HT230 ride heights 14" & 16"
and HT250T only)
-004 - Liftable Bolt-on (HT230 ride heights
15" & 17" and HT300 only) or Sliders —
Pre-assembled (HT230 ride heights 14" & 16")
-005 - Standard Primary Suspension (HT190
only) or Primary with Threaded Bolt (HT230
ride heights 14", 15" & 16" and HT300 only)
or Liftable with Threaded Bolt (HT230 ride
height 17" only)
-006 - Primary with Threaded Bolt (HT250T
and HT230 ride height 17" only) or Liftable
with Threaded Bolt (HT230 ride heights 14",
15" & 16" and HT300 only)
-007 - Remote Shock Primary Weld-on
-008 - Bolt-on Application — No Mounting
Plate
-009 - Liftable Weld-on (HT230 ride heights
14" & 16" only) or Sliders — Pre-assembled
(HT230 ride heights 15" & 17" only)
-010 - Liftable Bolt-on (HT230 ride heights
14" & 16" only) or Sliders — Separate SFK
(HT230 ride heights 15" & 17" only)
-011 - Remote Shock Primary Bolt-on
-012 - Remote Shock Liftable Weld-on
-013 - Sliders — Separate SFK — 4.0"
Jounce
-014, -015, -016, -017 & -020 & Greater
— Custom Designs
TC - Model Suffixes
-060 - Standard Travel — 1/2" Mounting
Bolts
-061 - Standard Travel — 5/8 " Mounting
Bolts
-062 - Liftable — 1/2" Mounting Bolts
-063 - Liftable — 5/8 " Mounting Bolts
-064 - Standard Travel — Remote Shock
— 1/2" Mounting Bolts
-065 - Standard Travel — Remote Shock
— 5/8" Mounting Bolts
-066 - Liftable — Remote Shock
— 1/2" Mounting Bolts
-067 - Liftable — Remote Shock
— 5/8" Mounting Bolts
11
YS-Beam Model Suffixes
-001 - High Pressure Air Spring (C-20124)
with 16.5" brakes or larger
-006 - Standard Air Spring (C-20127) with
16.5" brakes or larger
-010 - Standard Rotated Air Spring with
16.5" brakes or larger
-101 - High Pressure Air Spring (C-20124)
with 12.25" brakes
-106 - Standard Air Spring (C-20127) with
12.25" brakes
-110 - Standard Rotated Air Spring with
12.25" brakes
IDENTIFICATION GUIDE — TRAILER SUSPENSION AND AXLE SYSTEMS
CONNEX™-ST
Model Number: CONNEXST.4
DESCRIPTION:
CXS L 25K 14RH 860 P X7 SHD BO U Beam
Profile
Ride
Height
Axle
Track
Suspension Suspension
Type
Capacity
Tire
Brake
Frame
Inflation
Size
Attachment System
Spindle
Type Slack/Hub/Drum
Lift Kit
(if equipped)
CONNEX-ST DESCRIPTION MATRIX
Suspension Type
Spindle
Frame Attachment
CXS - Self-Steer Suspension System
P - HP
WO - Weld-on
BO - Bolt-on
Beam Profile
Brake Size
L - Liftable
X7 - 16.5" x 7.0" HXS®
Lift Kit
U - UBL™ UNDER BEAM LIFT™
Suspension Capacity
Slack Adjuster
25K - 25,000 lbs.
S - Any Brand Selection
- (Dash) - None
Tire Inflation System
Ride Height
Hub Brand
T - TIREMAAX® PRO or CP
13 RH = 13.0"
H - Any Brand Selection
- (Dash) - None
14 RH = 14.0"
15 RH = 15.0"
Drum Brand
16 RH = 16.0"
D - Any Brand Selection
17 RH = 17.0"
- (Dash) - No Drums
18 RH = 18.0"
19 RH = 19.0"
Axle Track
775 - 77.5"
800 - 80.0"
835 - 83.5"
840 - 84.0"
850 - 85.0"
860 - 86.0"
12
L977 Rev H
IDENTIFICATION GUIDE — TRAILER SUSPENSION AND AXLE SYSTEMS
CONNEX™
Model Number: CONNEX.21
DESCRIPTION:
CX U 23K 65RH 775 P X1 SHD WO - T
Ride
Height
Beam
Profile
Suspension
Type
Axle
Track
Suspension
Capacity
Tire
Brake
Frame
Inflation
Size
Attachment System
Spindle
Type Slack/Hub/Drum Suspension
(if equipped)
Lift Kit
CONNEX™ DESCRIPTION MATRIX
Suspension Type
Spindle
Drum Brand
CX - Unitized Suspension System
N - HN
D - Any Brand Selection
P - HP
- (Dash) - No Drums
Beam Profile
Frame Attachment
U - Underslung
Brake Size
Y - Y-Beam
X1 - 12.25" × 7.5" HXS
WO - Weld-on
L - Liftable
X7 - 16.5" × 7.0" HXS
BO - Bolt-on
T - Top-Mount
X8 - 16.5" × 8.63" HXS
Suspension Capacity
Slack Adjuster
U - UBL™ UNDER BEAM LIFT™
23K - 23,000 lbs.
S - Any Brand Selection
- (Dash) - None
Hub Brand
Tire Inflation System
H - Any Brand Selection
T - TIREMAAX® PRO or CP
®
25K - 25,000 lbs.
Ride Height
- (Dash) - None
55 RH = 5.5"
65 RH = 6.5"
75 RH = 7.5"
90 RH = 9.0"
15 RH = 15.0"
17 RH = 17.0"
Axle Track
715 - 71.5"
775 - 77.5"
L977 Rev H
13
IDENTIFICATION GUIDE — TRAILER SUSPENSION AND AXLE SYSTEMS
GENERAL GUIDELINES FOR INTERPRETING NON-INTEGRATED AXLE DESCRIPTIONS
TRLAXLE
®
Model Number: TRLAXLE.11885
DESCRIPTION:
HP- S 50 5 T 0774 - W E 1670 L C B B B 1 5 C F D A
Spindle Axle
Axle
Tube
Brake
Wall
Auto
Track
Type
Type Axle
Lube
Diameter Tire
Spider
Inflation
Type
Brake
Size
Hubs
Dust
Chambers Drums Shields
Brake
RTR Brake
Adjusters
RTR Lube Shoe
Cam
Packages
Length ABS
Coating
Option
Cam
Option
Model Number: TRLAXLE.14669
DESCRIPTION:
HP- S 50 5 - 0774 - W E 1670 L C B - - - - - - - S
Spindle Axle
Axle
Tube
Brake
Wall
Auto
Track
Type
Type Axle
Lube
Diameter Tire
Spider
Inflation
Type
Brake
Size
Hubs
Dust
Drums
Shields
Chambers
Cam
Option Brake
RTR Brake
Adjusters
Lube Shoe
Cam
Length ABS
RTR
Coating
Packages
Option
Model Number: TRLAXLE.14670
DESCRIPTION:
HN - S 50 4 - 0774 - W E 1670 L C B H T - - - - - S
Spindle Axle
Axle
Tube
Brake
Wall
Auto
Track
Type
Type Axle
Lube
Diameter Tire
Spider
Inflation
Type
14
Brake
Size
Hubs
Drums Dust
Shields
Chambers
Cam
Option Brake
RTR Brake
Adjusters
Lube Shoe
Cam
Length ABS
RTR
Coating
Option
Packages
L977 Rev H
IDENTIFICATION GUIDE — TRAILER SUSPENSION AND AXLE SYSTEMS
TRLAXLE® DESCRIPTION MATRIX
Spindle
HN® - Tapered Spindle
HP - Parallel Spindle (Pro-Par Type)
HPX - Parallel Spindle Cross-drill
Axle Type
S - Straight
C - Cambered
Axle Diameter
50 - 5" Round
56 - 5-¾" Round
Tube Wall
4 - ½" Nominal
5 - 5/8" Nominal
H - 5/8" (Heavy Duty)
6 - ¾"
Tire Inflation
T - TIREMAAX®
P - MTIS / PSI Prepped
V - Axle Vent Only
3 - 3-Hole Prep Only
- (Dash) - None
Axle Track
### - Track Length (inches) 1st 3 Digits
# - Track Length ( 1/8") 4th Digit
Auto Lube
L - Lube System - Fittings Installed
- (Dash) - None
Spider Type
B - Bolt-on Spider
W - Weld-on Spider
T - Torque Plate for Air Disc Brake
N - None
Brake Type
B - B-Lock
F - Std. Service - Dual Anchor Pin
(DAP) - BSFB brand
P - Pin Style - BSFB brand
X - HXS® / XLII - Dual Anchor Pin
(DAP) - BSFB brand
D or (Blank) - Air Disc Brake
- (Dash) - No Brake Shoes
H - Hendrickson Std. Service - Dual
Anchor Pin (DAP)
N - Hendrickson Pin Style
E - Hendrickson HXS (DAP)
C - Cams Only, No Brake Shoes
Brake Size
1274 - 12¼" × 7½" brakes
1585 - 15" × 85/8" brakes
1670 - 16½" × 7" brakes
1685 - 16½" × 85/8" brakes
415 - 415mm MAXX22T™ ADB
430 - 430mm ADB
---- (4 Dashes) - No Brakes
Cam Length
S - Standard. Short Length (175/8")
M - Standard. Medium Length (20 5/8")
L - Standard. Long Length (23¾")
X - Special Length (Non-Standard.)
- (Dash) - No S-Cams
Cam Option
C - Cam Tube
B - Reduced Maintenance Bushing
- (Dash) - No Special Cam Options
ABS Option
B - ABS Mounting Bracket Only
S - ABS Sensor Installed
- (Dash) - No ABS Sensors / Brackets
Brake Adjusters
B - Bendix
G - Gunite
H - Haldex
- (Dash) - No Brake Adjusters
Chambers
W - Meritor Wabco
B - Bendix
H - Haldex
K - Knorr - Air Disc Brake Only
T - TSE
- (Dash) - No Chambers
Hubs
1 - 10-stud, hub-piloted - 1st Digit
8 - 8-stud, hub-piloted - 1st Digit
- (Dash) - No Hubs - 1st Digit
RTR® READY TO ROLL® Packages
V - HVS® 3-yr - 2nd Digit
L - HLS® 5-yr - 2nd Digit
3 - HXL3® 3-yr - 2nd Digit
5 - HXL5® 5-yr - 2nd Digit
7 - HXL7® 7-yr - 2nd Digit
P - ConMet PreSet - 2nd Digit
- (Dash) - No RTR or 1-yr Std Service 2nd Digit
Drums
C - Cast Drum - 3rd Digit
F - Fused Drum - 3rd Digit
- (Dash) - No Drums - 3rd Digit
315 - 3-spoke, 15" wheel - All 3 Digits
520 - 5-spoke, 20" wheel - All 3 Digits
622 - 6-spoke, 22" wheel - All 3 Digits
624 - 6-spoke, 24" wheel - All 3 Digits
RTR Lube
G - Grease
F - Syn. Semi-Fluid Grease
O - 80W - 90 Oil
S - SAE 50 or 75W - 90 Synthetic
- (Dash) - None
Dust Shields
D - Dust Shield Included
- (Dash) - None
Brake Shoe Coating
A - AAXTREME COAT®
S or (Blank) - Standard (e-coat)
N - None
Please note this is not an all-inclusive representation of the possible description values and that all model
numbers may not represent the specific model descriptor.
L977 Rev H
15
IDENTIFICATION GUIDE — TRAILER SUSPENSION AND AXLE SYSTEMS
SUSPENSION IDENTIFICATION GUIDE
INSTRUCTIONS
STEP 1. Determine if unit is a primary or slider suspension.
STEP 2. If it is a slider, use the following illustrations to determine the slider box type and the suspension model.
If it is a primary, use the illustrations beginning on page 20 to determine the suspension model.
SLIDER SUSPENSIONS — VAN / REEFER APPLICATIONS
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TSB/Document ID: L977 Rev H
Replacement Service Bulletin Number:
MFR Communication Date: 2019-03-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)
MFR Component System:
MFR Component Subsystem:
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