To find HWH® Replacement Parts, Operator Manuals, and Service Manuals it
is often necessary to know what jack style you have.

This guide will help identify which jack
style you have, with the aid of pictures and descriptions.

SPRING-RETRACT JACKS(Kick-Down & Straight-Acting)

POWER-RETRACT JACKS(Straight-Acting)

POWER-RETRACT JACKS with
INTEGRATED POWER UNIT(Straight-Acting)

NOTES:

1. All HWH® jacks are hydraulic power-extend.
2. All Straight-Acting Jacks have a swivel-foot.
3. All Kick-Down Jacks have a rigid-foot.
4. #K X ##" = Single-Jack Lifting Capacity (lbs. X 1000) X Cylinder Stroke
5. SA = straight-acting
6. KD = kick-down

SPRING-RETRACT JACKS

SPRING-RETRACT | KICK-DOWN

HWH® Kick-Down Jack

*6K

*9K

16K

24K

• For Motorhomes, Fifth Wheels, and Travel Trailers.

• KD jacks pivot from horizontal
store position to a vertical
operate position.

• KD jacks are all "power-extend", "spring-retract"
and have a "rigid foot".

• With modifications, KD jacks can be used with computer or manual-control
leveling systems.

• KD jacks need a bracket to mount to the vehicle’s frame.

SPRING-RETRACT | STRAIGHT-ACTING |
PIVOTING-CYLINDER

HWH®
Straight-Acting/Pivoting (Power-Extend/Spring-Retract) Jack

*3K X 13"

*4K

*6K | *9K | *12K | *16K | *24K

ML41825

ML41825.WMV 3kjack.html

ML36949

ML36949.WMV

ML54588

TELESCOPING-CYLINDER

• For Motorhomes, Fifth Wheels, and Travel Trailers. (Video: straightpivoting.wmv)

SPRING-RETRACT | STRAIGHT-ACTING | NON-PIVOTING-CYLINDER

HWH® Straight-Acting
(Power-Extend/Spring-Retract) Jack

HWH® Straight-Acting
(Power-Extend/Spring-Retract) Telescoping Jack (3K & 4K)

HWH® Straight-Acting
(Power-Extend/Spring-Retract) Easy-Mount Jack (6K, 9K, 12K,
16K)

*3K | *4K (Telescoping)

*6K | *9K | *12K

• For Fifth Wheels and Travel Trailers.

*6K | *9K | *12K | *16K (Easy Mount)

• For Motorhomes. (straight-acting3.html)

• Fixed-mount to
vehicle in a vertical position.

• Also sold in 10K,
14K, and 18K.

• Three-point
systems that were produced used a non-pivoting SA jack for the front jack.

• 1985 Executive®
coaches used three non-pivoting SA jacks.

* CURRENT PRODUCTION

POWER-RETRACT JACKS

POWER-RETRACT | STRAIGHT-ACTING | NON-PIVOTING-CYLINDER

HWH® Straight-Acting
(Power-Extend/Power-Retract) Jack

*7K X 13"

ML44872

*7K X 21"

ML42935

*12K X 21" – ML42933

*12K X 24" – ML43625

*12K X 30" – ML43626

*12K X 24"

ML43764

*24K X 16"

ML45328

*24K X 24"

ML43627

• For Motorhomes.

• For Fifth Wheels and Travel Trailers.

• Also sold in 16K.

POWER-RETRACT | STRAIGHT-ACTING | NON-PIVOTING-CYLINDER

PRECISION LEVELING JACK

HWH® Straight-Acting
(Power-Extend/Power-Retract) Precision Leveling Jack

7K

*16K X 16"
(AP44724 – ML45101)

*24K X 16"
(AP44699 – ML45102)

• For Fifth Wheels and Travel Trailers.

POWER-RETRACT | STRAIGHT-ACTING |
PIVOTING-CYLINDER

HWH®
Straight-Acting/Pivoting (Power-Extend/Power-Retract) Jack

*12K (13" &
16" STROKE) – ML43811

*16K (13" and
16" STROKE) – ML43812

• For Motorhomes, Fifth Wheels, and Travel Trailers.

* CURRENT PRODUCTION

POWER-RETRACT JACKS
with INTEGRATED POWER UNIT

POWER-RETRACT | STRAIGHT-ACTING | NON-PIVOTING-CYLINDER

HWH® Straight-Acting
(Power-Extend/Power-Retract) Jack (With Integrated Power Unit)

12K X 24" – ML43799

INTEGRATED POWER UNIT W/HAND-PUMP

12K X 24" – ML43799B

INTEGRATED POWER UNIT

• For Fifth Wheels and Travel Trailers.