In March 2000, two 4-car sets of 300 sub-series trains were reassigned to Hineno Depot for operation on the Wakayama Line.
These sets were classified as G801 and G802.
Until the reassignment, 113 series trains (sets G416 and G417) in the Shōnan green/orange livery were used for the line's morning rush services.

In March 2001, the 117 series trains assigned to Miyahara Depot were removed from the Nara Line's Miyakoji rapid service.
One 6-car set from Miyahara Depot was reassigned to Hineno Depot as G803 and used to replace 113 series units out of service for inspection.
In December of the same year, two surplus 300 subseries end cars and two MoHa units not in the G803 set were modified for driver-only operation and painted ocean green with a lavender stripe.
These entered service as G804 in January 2002.
Subsequently, all 117 sets received the same treatment.

In March 2002, Miyahara Depot's 4-car set C12 was returned from Shimonoseki to Hineno, and the inventory of five 4-car sets was complete.
At this time, the operating area of the Hineno Depot 117s was enlarged on the Hanwa Line from Hineno Station to Wakayama Station, and on the Kisei Main Line from Wakayama Station to Kii-Tanabe Station.

In November 2002, after reassignment to Shin-Wakayama Depot, they were removed from service on the Hanwa Line and on the Kisei Main Line between Gobo and Kii-Tanabe.
In August 2008, they were transferred back to Hineno Depot and are currently operating on the Wakayama Line.

117 series trains operating on the Kisei Main Line and Wakayama Lines are classified as:
G1(G805): KuHa117-12  – MoHa117-24  – MoHa116-24  – KuHa116-12
G2(G803): KuHa117-14  – MoHa117-28  – MoHa116-28  – KuHa116-14
G3(G804): KuHa117-308 – MoHa117-40  – MoHa116-40  – KuHa116-308
G4(G801): KuHa117-318 – MoHa117-305 – MoHa116-305 – KuHa116-318
G5(G802): KuHa117-320 – MoHa117-341 – MoHa116-341 – KuHa116-320
Numbers in parentheses were used by Hineno Depot until March 2002
In March 2000, two 4-car sets of 300 sub-series trains were reassigned to Hineno Depot for operation on the Wakayama Line. These sets were classified as G801 and G802. Until the reassignment, 113 series trains (sets G416 and G417) in the Shōnan green/orange livery were used for the line's morning rush services.
In March 2001, the 117 series trains assigned to Miyahara Depot were removed from the Nara Line's Miyakoji rapid service. One 6-car set from Miyahara Depot was reassigned to Hineno Depot as G803 and used to replace 113 series units out of service for inspection. In December of the same year, two surplus 300 subseries end cars and two MoHa units not in the G803 set were modified for driver-only operation and painted ocean green with a lavender stripe. These entered service as G804 in January 2002. Subsequently, all 117 sets received the same treatment.
In March 2002, Miyahara Depot's 4-car set C12 was returned from Shimonoseki to Hineno, and the inventory of five 4-car sets was complete. At this time, the operating area of the Hineno Depot 117s was enlarged on the Hanwa Line from Hineno Station to Wakayama Station, and on the Kisei Main Line from Wakayama Station to Kii-Tanabe Station.
In November 2002, after reassignment to Shin-Wakayama Depot, they were removed from service on the Hanwa Line and on the Kisei Main Line between Gobo and Kii-Tanabe. In August 2008, they were transferred back to Hineno Depot and are currently operating on the Wakayama Line.
117 series trains operating on the Kisei Main Line and Wakayama Lines are classified as:
G1(G805): KuHa117-12  – MoHa117-24  – MoHa116-24  – KuHa116-12
G2(G803): KuHa117-14  – MoHa117-28  – MoHa116-28  – KuHa116-14
G3(G804): KuHa117-308 – MoHa117-40  – MoHa116-40  – KuHa116-308
G4(G801): KuHa117-318 – MoHa117-305 – MoHa116-305 – KuHa116-318
G5(G802): KuHa117-320 – MoHa117-341 – MoHa116-341 – KuHa116-320
Numbers in parentheses were used by Hineno Depot until March 2002
117 series